Ralph Waldo Emerson

Men love to wonder, and that is the seed of science.
LIM SZU CHING EL-N05 D20102045337


Fun Experiment (4) Invisible?Incredible!

Invisible Ink with Lemon Juice

Making invisible ink is a lot of fun, you can pretend you are a secret agent as you keep all your secret codes and messages hidden from others. All you need is some basic household objects and the hidden power of lemon juice.

What you'll need:
  • Half a lemon
  • Water
  • Spoon
  • Bowl
  • Cotton bud
  • White paper
  • Lamp or other light bulb
  1. Squeeze some lemon juice into the bowl and add a few drops of water.
  2. Mix the water and lemon juice with the spoon.
  3. Dip the cotton bud into the mixture and write a message onto the white paper.
  4. Wait for the juice to dry so it becomes completely invisible.
  5. When you are ready to read your secret message or show it to someone else, heat the paper by holding it close to a light bulb.
What's happening?

Lemon juice is an organic substance that oxidizes and turns brown when heated. Diluting the lemon juice in water makes it very hard to notice when you apply it the paper, no one will be aware of its presence until it is heated and the secret message is revealed. Other substances which work in the same way include orange juice, honey, milk, onion juice, vinegar and wine. Invisible ink can also be made using chemical reactions or by viewing certain liquids under ultraviolet (UV) light.

Fun Experiment (3) Let's make FIZZY~~

Make Lemonade Fizzy Drink


There's a lot of people out there that like drinking fizzy drinks, so why not do a fun science experiment that leaves you with your own lemon soda to drink afterwards!
A bit of lemon here and a bit of baking soda there and before you know it you'll be an expert at making your own fizzy drinks. Make your own lemonade softdrink with this fun experiment for kids.

What you'll need:
  • Lemon
  • Drinking glass
  • Water
  • 1 teaspoon of baking soda
  • Some sugar to make it sweet
  1. Squeeze as much of the juice from the lemon as you can into the glass.
  2. Pour in an equal amount of water as lemon juice.
  3. Stir in the teaspoon of baking soda.
  4. Give the mixture a taste and add in some sugar if you think it needs to be sweeter.
What's happening?

The mixture you created should go bubbly and taste like a lemonade, soda, fizzy or soft drink, if you added some sugar it might even taste like a lemon flavoured soft drink you've bought at a store. The bubbles that form when you add the baking soda to the lemon mixture are carbon dioxide (CO2), these are the same bubbles you'll find in proper fizzy drinks. Of course they add a few other flavored sweeteners but it's not much different to what you made. If you are wondering how the carbon dioxide bubbles formed, it was because you created a chemical reaction when you added the lemon (an acid) to the baking soda (a base).


Fun Experiment (2) Oil & Water ??!!

Mixing Oil and Water
Some things just don't get along well with each other. Take oil and water as an example, you can mix them together and shake as hard as you like but they'll never become friends.....or will they? Take this fun experiment a step further and find out how bringing oil and water together can help you do your dishes.

What you'll need:
  • Small soft drink bottle
  • Water
  • Food colouring
  • 2 tablespoons of cooking oil
  • Dish washing liquid or detergent
  1. Add a few drops of food colouring to the water.
  2. Pour about 2 tablespoons of the coloured water along with the 2 tablespoons of cooking oil into the small soft drink bottle.
  3. Screw the lid on tight and shake the bottle as hard as you can.
  4. Put the bottle back down and have a look, it may have seemed as though the liquids were mixing together but the oil will float back to the top.
What's happening?
While water often mixes with other liquids to form solutions, oil and water does not. Water molecules are strongly attracted to each other, this is the same for oil, because they are more attracted to their own molecules they just don't mix together. They separate and the oil floats above the water because it has a lower density.
If you really think oil and water belong together then try adding some dish washing liquid or detergent. Detergent is attracted to both water and oil helping them all join together and form something called an emulsion. This is extra handy when washing those greasy dishes, the detergent takes the oil and grime off the plates and into the water, yay!

Fun experiments (1) Floating Egg!

Make an Egg Float in Salt Water
An egg sinks to the bottom if you drop it into a glass of ordinary drinking water but what happens if you add salt? The results are very interesting and can teach you some fun facts about density.

What you'll need:

  • One egg
  • Water
  • Salt
  • A tall drinking glass
  • Instructions:
    1. Pour water into the glass until it is about half full.
    2. Stir in lots of salt (about 6 tablespoons).
    3. Carefully pour in plain water until the glass is nearly full (be careful to not disturb or mix the salty water with the plain water).
    4. Gently lower the egg into the water and watch what happens.

    What's happening?
    Salt water is denser than ordinary tap water, the denser the liquid the easier it is for an object to float in it. When you lower the egg into the liquid it drops through the normal tap water until it reaches the salty water, at this point the water is dense enough for the egg to float. If you were careful when you added the tap water to the salt water, they will not have mixed, enabling the egg to amazingly float in the middle of the glass.


    Technology (5) Brain Machine Interface Video

    Brain Machine Interface Video

    Using the latest in science innovation, Honda is working on a technologically advanced interface which links a humans thoughts to an outside object like a form of mind control. They call this technology ‘Brain Machine Interface’.

    In this video a human manages to control a robot called ASIMO using thought alone. There are a huge number of potential applications for this type of technology and it’s no surprise that scientists, researchers and various companies are investing a lot of time and money in it.


    Fun Facts of Video Game

    Video Game Facts
    Learn about the history of gaming and enjoy a wide range of fun video game facts.

    Whether you’re into Playstation, Xbox or Nintendo consoles you’ll find information relating to all of the above and more. Get gaming industry facts, read about the history of gaming, learn what type of game genres are popular and much more.

    • Video games can be played on a number of different platforms. This includes game consoles, handheld systems, computers, mobile phones, and others.
    • The first coin operated video games were introduced in the 1970’s with titles such as ‘Computer Space’ and ‘Pong’ gaining popularity.
    • Popular game consoles that dominate current markets include the Nintendo Wii, Microsoft Xbox 360 and Sony Playstation 3. The three companies are battling to gain the attention of gamers in the competitive gaming industry.
    • Often seen as an industry leader and innovator, Nintendo have helped grow the video games industry beyond just hardcore gamers thank to games such as Nintendogs, Brain Training and Wii Sports, titles that take advantage of Nintendo’s unique gaming platforms and appeal to casual gamers.
    • In the past the primary input for video games has been the handheld controller, this has changed recently as game makers look to capture new audiences with new interactive input devices. Examples of this include cameras which respond to user movement, guitars, microphones, touch screens, motion sensitive controllers and more.
    • Video game genres are wide and varied. Examples of popular genres include action adventure, strategy, role playing, sports, racing, simulation and puzzle.
    • Making video games has become big business and creating a high quality game often takes the input of a large number of game developers for the game to be successful. As well as a high number of graphic designers and programmers, other skills such as management, writing and music are also important to the final product.
    • With the rise of the Internet gaming has seen a strong growth in the field of multiplayer games. While this previously was limited to playing with someone in the same location, it now includes people interacting with each other who are in different cities, countries or even living on opposite sides of the globe.
    • A popular example of multiplayer gaming can be seen in massively multiplayer online role-playing games (MMORPG). These games enable large numbers of players to interact in the same virtual world, creating fictional characters, living virtual lives and experiencing the challenges and quests that various MMORPG games offer. A good example of this type of gaming can be seen in the popularity of World of Warcraft (WoW), this game has become immensely popular and currently has over 10 million paying subscribers.
    • Depending on your view point, video games can be seen as in both a positive and negative light. While users can be entertained as they improve hand eye coordination, problem solving skills and other abilities there is also research of extended gaming limiting children’s physical activity and an overexposure to violence at a young age.


    Technology (4) Sony Rolly Demonstration

    Sony Rolly Demonstration

    This video shows a demonstration of the amazing Sony Rolly music player in action.

    Watch as it spins, rolls and dances to whatever music or sounds it plays. It has speakers and a control mechanism which takes advantage of the Rolly’s unique features.


    Technology (3) Amazing Honda Commercial

    Amazing Honda Commercial

    Enjoy this amazing commercial made by Honda as part of an advertising campaign. The ad is based on the classic domino idea where one object knocks over the next and so on.

    Of course in this case Honda have taken it to a completely different level using all kinds of car parts to make a memorable video clip that apparently took hundreds of takes to complete with no computer generated effects used at all.


    Technology (2) 3D TV - How does it Work?

    3D TV - How does it Work?

    3D TV is becoming a popular choice for moviegoers as well as buyers in the TV market but how does it actually work?

    Enjoy this technology video from Panasonic Australia that helps explain in simple language how your eyes see the world in 3D and how this is adapted to 3D television in both LCD and plasma formats.


    Technology (1) Siri iPhone Personal Assistant

    Siri iPhone Personal Assistant
    Get an introduction to some of the handy capabilities of the Siri personal assistant on the Apple iPhone with this technology video.

    Using natural language and impressive AI, Siri can send messages, make calls, search for nearby restaurants, give important reminders and much more. Siri is an exciting technology for smartphone users and especially useful for the blind who can make the most of Siri’s functions to make them more independent and their everyday life that much easier.


    Fun Facts of Space

    Space Facts
    Read some fun space facts for kids and find out more about astronomy, the Moon, planets, our Sun, the Milky Way galaxy, our Universe and much more.
    Children will love the cool, crazy, strange, funny, weird, odd, bizarre and wacky information as well as did you know facts and other interesting space info that will help them learn a thing or two along the way.
    • The Sun is over 300000 times larger than earth.
    • Halley's Comet was last seen in the inner Solar System in 1986, it will be visible again from Earth sometime in 2061 (get your camera ready).
    • Venus is the hottest planet in our solar system with a surface temperature of over 450 degrees celcius.
    • Many scientists believe that an asteroid impact caused the extinction of the dinosaurs around 65 million years ago.
    • The Solar System formed around 4.6 billion years ago.
    • The Moon appears to have more craters and scars than Earth because it has a lot less natural activity going on, the Earth is constantly reforming its surface through earthquakes, erosion, rain, wind and plants growing on the surface, while the moon has very little weather to alter its appearance.
    • Saturn isn't the only ringed planet, other gas giants such as Jupiter, Uranus and Neptune also have rings, they are just less obvious.
    • Footprints and tyre tracks left behind by astronauts on the moon will stay there forever as there is no wind to blow them away.
    • In 2006, astronomers changed the definition of a planet. This means that Pluto is now referred to as a dwarf planet.
    • Because of lower gravity, a person who weighs 100kg on earth would only weigh 38kg on the surface of Mars.
    • The only planet that rotates on its side like a barrel is Uranus. The only planet that spins backwards relative to the others is Venus.

    • Some of the fastest meteoroids can travel through the solar system at a speed of around 42 kilometres per second (26 miles per second).
    • The first man made object sent into space was in 1957 when the Russian satellite named Sputnik was launched.
    • Jupiter's 4 biggest moons are named Europa, Ganymede, Callisto and Io.
    • It is because of the Sun & Moons gravity that we have high & low tides.


    Fun Facts of Animals - PEGUINS

    Fun Penguin Facts for Kids
    Enjoy our fun penguin facts for kids. Learn about the Emperor Penguin, King Penguin, Crested Penguin, Little Blue Penguin, Chinstrap Penguin and more. Read on to find out what makes penguins unique members of the animal kingdom.

  • Penguins are flightless birds.
  • While other birds have wings for flying, penguins have adapted flippers to help them swim in the water.
  • Most penguins live in the Southern Hemisphere.
  • The Galapagos Penguin is the only penguin specie that ventures north of the equator in the wild.

  • Large penguin populations can be found in countries such as New Zealand, Australia, Chile, Argentina and South Africa.
  • No penguins live at the North Pole.
  • Penguins eat a range of fish and other sealife that they catch underwater.
  • Penguins can drink sea water.
  • Penguins spend around half their time in water and the other half on land.

  • The Emperor Penguin is the tallest of all penguin species, reaching as tall as 120 cm (47 in) in height.
  • Emperor Penguins can stay underwater for around 20 minutes at a time.
  • Emperor Penguins often huddle together to keep warm in the cold temperatures of Antarctica.
  • King Penguins are the second largest penguin specie. They have four layers of feathers to help keep them warm on the cold subantarctic islands where they breed.
  • Chinstrap Penguins get their name from the thin black band under their head. At times it looks like they’re wearing a black helmet, which might be useful as they’re considered the most aggressive type of penguin.

  • Crested penguins have yellow crests, as well as red bills and eyes.
  • Yellow eyed penguins (or Hoiho) are endangered penguins native to New Zealand. Their population is believed to be around 4000.
  • Little Blue Penguins are the smallest type of penguin, averaging around 33 cm (13 in) in height.
  • Penguin’s black and white plumage serves as camouflage while swimming. The black plumage on their back is hard to see from above, while the white plumage on their front looks like the sun reflecting off the surface of the water when seen from below.
  • Penguins in Antarctica have no land based predators.

  • 2.11.11

    Fun Facts of Animals - FISHES

    Fun Fish Facts for Kids


    Check out our fun fish facts for kids and learn a wide range of interesting information about fish. What do fish use gills for? How big are their brains? What are cleaner fish? Find out the answers to these questions and much more.
    • Fish are vertebrate animals that live in the water. Vertebrate means they have a spinal cord surrounded by bone or cartilage.
    • Fish have gills that extract oxygen from the water around them.
    • There are over 30000 known species of fish.
    • Some flatfish use camouflage to hide themselves on the ocean floor.
    • Tuna can swim at speeds of up to 70 kph (43 mph).
    • Relative to their body size, fish have small brains compared to most other animals.
    • Fish are covered in scales which are often covered in a layer of slime to help their movement through water.
    • Cleaner fish help out other fish by removing parasites and dead skin from their scales.
    • Although jellyfish and crayfish have the word ‘fish’ in their name, they aren’t actually fish.
    • Over 1000 fish species are threatened by extinction.
    • Mermaids are mythological creatures with the tail of a fish and the upper half of a woman.


    Fun Facts of Animals - CATS

    Fun Cat Facts for Kids
    Check out these fun cat facts for kids. Learn about cats as pets, their unique behavior, how long they sleep and much more.
    Read on and enjoy the wide range of interesting facts about cats and kittens.
    •  Cats are one of, if not the most, popular pet in the world.
    • There are over 500 million domestic cats in the world.
    • Cats and humans have been associated for nearly 10000 years.
    • Cats conserve energy by sleeping for an average of 13 to14 hours a day.
    • Cats have flexible bodies and teeth adapted for hunting small animals such as mice and rats.
    • A group of cats is called a clowder, a male cat is called a tom, a female cat is called a molly or queen while young cats are called kittens.
    • Domestic cats usually weight around 4 kilograms (8 lb 13 oz) to 5 kilograms (11 lb 0 oz).
    • The heaviest domestic cat on record is 21.297 kilograms (46 lb 15.2 oz).
    • Cats can be lethal hunters and very sneaky, when they walk their back paws step almost exactly in the same place as the front paws did beforehand, this keeps noise to a minimum and limits visible tracks.
    • Cats have powerful night vision, allowing them to see at light levels six times lower than what a human needs in order to see.
    • Cats also have excellent hearing and a powerful sense of smell.
    • Older cats can at times act aggressively towards kittens.

    • Domestic cats love to play, this is especially true with kittens who love to chase toys and play fight. Play fighting among kittens may be a way for them to practice and learn skills for hunting and fighting.
    • On average cats live for around 12 to 15 years.
    • Cats spend a large amount of time licking their coats to keep them clean.
    • Feral cats are often seen as pests and threats to native animals.


    Fun Facts of Animals - DOGS

    Fun Dog Facts for Kids
    Enjoy these fun dog facts that deliver a variety of information about interesting breeds, puppies, guide dogs such as Labradors and much more. As the famous saying goes, dogs are man’s best friend. Whether it’s as reliable workers, family pets or loyal companions, dogs are wonderful domestic animals that offer a number of qualities that are put to good use by humans.

  • In total there is said to be around 400 million dogs in the world.
  • The domestic dog has been one of the most popular working and companion animals throughout human history.

  • Dogs perform many useful tasks for humans including hunting, farm work and security as well as assisting those with disabilities such as the blind.

  • Although experts often disagree, there is scientific evidence which shows that the domestication of dogs could have occurred more than 15,000 years ago.

  • There are hundreds of different breeds of dogs.

  • Examples of these breeds include: Bulldog, German Shepherd, Collie, Golden Retriever, St Bernard, Greyhound, Bloodhound, Chihuahua, Labrador, Great Dane, Rottweiler, Boxer and Cocker Spaniel.

  • The most popular breed of dog in the world by registered ownership is the Labrador. With their gentle nature, obedience, intelligence and near limitless energy, Labradors make for excellent family pets and reliable workers. They often assist police and are a common choice as guide dogs.

  • Dogs have formed such a strong bond as pets, workers and companions to humans that they have earned the nickname "man's best friend".

  • Humans help train various dog breeds to enter in competitions such as breed shows, agility and obedience contests, racing and sled pulling.

  • Dog have superior hearing than humans, capable of hearing sounds at four times the distance.

  • Dogs have a remarkable sense of smell, they are capable of differentiating odors in concentrations nearly 100 million times lower than humans can.

  • The average life span for a dog is around 10 to 14 years.

  • Those involved in dog breeding refer to males as ‘dogs’, females as ‘bitches’, dogs younger than a year old as ‘puppies’ and a group of offspring as a ‘litter’.

  • Domestic dogs are omnivores, they feed on a variety of foods including grains, vegetables and meats

  • 18.10.11

    Science is fun!

    Welcome to Cikgu Lim Love Science, where you can learn about Science in a fun way, because as these giants sing... 'Science is real'. Science is always around us. Check it out!

    Belajar sains dengan seronok!! Sains adalah ilmu yang mempelajari tentang sistem mengenai alam semesta serta pengaruhnya terhadap manusia dan lingkungannya. Mempelajari sains bererti juga belajar tentang cara untuk menggunakan benda-benda di sekitar kita untuk membuat kehidupan kita lebih mudah. Semuanya berlaku di sekitar kita!!