ou will need:

• A foam tray (like the kind meat comes in) or a piece of non-currogated cardboard
• A tray, bowl, or cookie sheet full of water
• Liquid dish soap
• A toothpick

What to do:

Cut the foam tray or cardboard into a boat shape as shown below:

A good size seems to be about 2 inches long.

Dip the toothpick into the liquid soap and use the toothpick to put soap onto the sides of the notch at the back of the boat.

That’s it! Now carefully place the boat onto the surface of the water and watch it scoot across the water for several seconds – you’ve made a soap-powered boat! To demonstrate the boat again, you will need to rinse out the tray to remove any soap from the previous demonstration.

How does it work?

Soap is a surfactant – that means that it breaks down the surface tension of water.  As the surface tension is broken up, it creates enough of a force to push the lightweight boat across the surface.

MAKE IT AN EXPERIMENT

The project above is a DEMONSTRATION. To make it a true experiment, you can try to answer these questions:

1. Does liquid soap last longer than a solid piece of soap?
2. Does warm water work better than cold water?
3. What materials make the best floating boat?

9 Fakta Menarik Mengenai Dinosaur

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9 Fakta Menarik Mengenai Dinosaur

Menurut sumber terbaru, Dinosaur dikatakan dapat bertahan selama lebih dari 700,000 tahun setelah bumi dihentam meteor raksasa, yang pada awalnya mengatakan dinosaur telah terus pupus. Berikut adalah beberapa fakta yang menarik tentang dinosaur

NO 9 - Nama Dinosaur Terpanjang



Dinosaur yang mempunyai nama paling panjang ialah "Micropachycephalosaurus" yang bermaksud "Keldai berkepala kecil". Fosil dinosaur jenis ini ditemukan di Tiongkok dan telah diberi nama pada tahun 1978 oleh paleontologi Tiongkok, Dong.

NO 8 - Dinosaur Tertua



Dinosaur tertua yang diketahui berusia 230 juta tahun, dan telah ditemukan di Madagaskar. Dinosaur jenis ini belum diberikan nama secara rasmi. Sebelum ditemui dinosaur ini, rekod yang tertua didunia adalah dari dinosaur jenis Euraptor yang berusia diperkirakan 228 juta tahun.

NO 7 - Dinosaur Berlari Tercepat



Dinosaurus tercepat adalah dari jenis Ornithomimids yang seperti burung unta, seperti Dromiceiomimus, yang mampu berlari dengan kecepatan hingga 60 km/jam.

NO 6 - Dinosaur Dengan Otak Terkecil



Stegosaurus memiliki ukuran otak sebesar buah kenari, dengan panjang 3 cm dan berat 75 gram. Dibandingkan ukuran otak dengan ukuran tubuh sauropodomorph, seperti Platesaurus, mungkin dinosaurus ini adalah dari jenis yang paling lambat.

NO 5 - Dinosaur Paling Tangkas



Salah satu dinosaurus paling tangkas adalah Troodon. Dinosaurus ini tergolong dalam pemburu yang panjangnya sekitar 2 meter. Memiliki ukuran otak seperti mamalia, dengan pengelihatan tajam (stereoskopik vision), dan cengkeraman tajam.

NO 4 - Telur Dinosaur Yang Terkecil



Telur dinosaurus terkecil yang telah ditemukan hanya sepanjang 3 cm, namun tidak diketahui dari jenis apa.

NO 3 - Dinosaur Terkecil



Fosil dinosaurus terkecil keseluruhannya dari jenis burung yang memakan tumbuhan seperti Lesothosaurus, yang hanya berukuran sebesar ayam. Contoh fosil yang lebih kecil telah ditemukan namun ianya masih merupakan bayi.

NO 2 - Dinosaur Terberat



Dinosaurus terberat adalah Brachiosaurus, yang beratnya sekitar

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.

PENGENALAN

MAKLUMAT PEMBELAJARAN DIKONGSI BERSAMA....

Carnivorous Plants – Plants That Eat Meat  

Most of the time, plants are the ones that get eaten, but every now and then, a plant gets revenge. Some plants are carnivores. This means that they eat meat! Now, they certainly don’t eat steak, but they’re happy to feast on the occasional bug that crosses their path.

Venus fly  traps are probably the most famous carnivorous plants. These plants have a pair of thick, padded leaves that are covered with tiny hairs. When a fly touches the hairs – SNAP – the leaves shut like two powerful jaws. The plant releases enzymes that break down the fly’s insides into a soup. Dinner is served.

Fun Lemon Battery Science Fair Experiment for Kids  

We all heard of making lemonade out of lemons and that when things go wrong, if you know to Think in The Right Way then you can make something good come out of a sour situation. But how can you make a BATTERY out of Lemons?!

Image of a Lemon Battery Science Fair Experiment for Kids

Most of us know what Lemons look like; A Lemon is a yellow, oval, thick skinned and fragrant citrus fruit said to originate from India and is commonly grown in theMiddle East.

The Parts Composing the Citrus Lemon Fruit

Lemons are a good source of Vitamin C, which is important to boost our immune system in order to fight sickness. Lemons are used in aromatherapy, but they are not just healthy for you, they are also used for culinary purposes; lemon juice, lemon cakes, lemon cookies, a tarty lemon pie, lemon ice cream and in food preparations like Tahini, Hummus, salads and many other dishes in many countries around the world.