Memaparkan catatan dengan label Science Corner. Papar semua catatan
Memaparkan catatan dengan label Science Corner. Papar semua catatan

Ahad, Oktober 24, 2010

National Geographic for Kids



Laman web ini menyediakan video, permainan, aktiviti dan cerita untuk kanak-kanak. Sangat menarik. Jom lawati laman ini untuk memberikan pengalaman bermakna buat anak-anak didik kita. Klik di sini :

http://kids.nationalgeographic.com/kids/


Sabtu, Oktober 23, 2010

Gunung Berapi



Description: volcano is made of plastic containers, nozzle of the toilet paper and some boxes. In some water I put baking soda, and color the vinegar with food color. Then add vinegar in soda.

Rabu, Februari 10, 2010

Experiment: The sky in a glass

Globule wonders...
Why is the sky blue?

Experiment: The sky in a glass


Hypotheses:
Have children tell you why they think the sky is blue. You may even push them to think further and ask them why they think the sky turns red when the sun sets.

Material:
A glass or other transparent container with straight sides
1 to 2 cups of water
½ teaspoon to 1 teaspoon of milk
A flashlight
Manipulations:

Pour water into the glass until is ¾ full.

Add the milk and stir well.

You will need your imagination for this experiment. Imagine that the water in the glass represents the air which surrounds you and that the milk represents tiny dust particles found in the air. These particles are so small you cannot see them...but they exist! The flashlight will play the role of the sun.

Go to a dark room with your daycare worker and friends. Bring the glass.

Once you are in the dark, your daycare worker will place the flashlight over the glass, directing the light onto the water's surface. Watch from the side of the glass (see diagram, first observation). What colour do you see? Look closely it is a very light colour!

For the second observation, your daycare worker will place the flashlight in front of you. This will demonstrate the position of the sun when it sets. What colour do you see?

The sun continues its descent for the third observation. You should see the same colour as in the second observation, only darker.
Explanations:
The white light produced by the flashlight is really a combination of all the colours of light. When the white light hits the small particles of milk suspended in the water, the blue colour separates itself from the others to the side. That is why you see blue when you observe from the side.

The same principle exists in air only the light from the sun hits dust particles. This is why the sky seems blue when the sun is over your head. When the sun descends to your eye level, the sky seems red. You can longer see the blue which is off to the side since the beam of light is directly in front of you.

Source: http://www.educatall.com/page/63/The-sky-in-a-glass.html

Sabtu, Februari 06, 2010

Script For Teaching Mathematic and Science

Assalamualaikum
I accidentally found this website that can help us to speak English during the Mathematics session. Here are some of the example to teach numbers 0-10.

“Children, look at these picture cards”.

e.g. 3 birds, 5 bees, 6 chicks

“Let’s us make sound ”.

Pupils make sound like birds “chirping …”; like bees “buzzing …” ; frogs “croaking …..” and count according to the number of animals shown.

Repeat by tapping knees or hopping.

more

You can print all these script. There also a script to teach Science. Just click this link.

Selasa, Disember 30, 2008

It floats, it sinks

Angélique Boissonneault has a Bachelor's Degree in Biological Science. She has worked in a laboratory and tested her knowledge. She has taught Math, Chemistry, and Physics. She has also developed a simplistic and innovative approach designed to introduce young children to scientific experiments, old and new. She created her friend Globule. This character is sometimes red, and sometimes white. He guides little ones through their scientific experiments and discoveries. It is clear to see Angélique is passionate about children and science. Globule's Approach.

Globule wonders...Globule

Why do some objects float and other objects sink?


Experiment: It floats, it sinks

Material:

A large container filled with water
A cork
A Lego block
A pebble
A coin
A plastic spoon
A metal spoon
A nail
A rubber ball
A piece of cardboard
A piece of wood
Modeling dough (one piece rolled into a ball, another piece shaped like a bowl)


Manipulations:
1. Put all the objects your daycare worker selected for the experiment on the table.
2. Choose one and drop it into the water. Does it sink or float?
3. One at a time, place the objects in the water until there are none left.
4. As you go along, sort the objects into two piles, the objects which float and the objects which sink.
5. Look around for other objects you can experiment with.
6. Try to guess the result before dropping the objects into the water.

Explanations:
There is no rule as to which objects float and which objects sink. You probably noticed that some objects are big but still remain at the surface while other objects are very small but sink to the bottom. Some very heavy objects float (large ships) and light objects sink (a penny). The size or weight of objects does not determine whether they float or sink. The two characteristics must be considered together. The shape of an object plays an important role in regards to its buoyancy. The modeling dough rolled into a ball sinks whereas the modeling dough shaped like a bowl with thin sides, floats. Incredible isn't it?

Source: http://www.educatall.com/page/144/It-floats--it-sinks.html


Selasa, Disember 16, 2008

Salt Water

Angélique Boissonneault has a Bachelor's Degree in Biological Science. She has worked in a laboratory and tested her knowledge. She has taught Math, Chemistry, and Physics. She has also developed a simplistic and innovative approach designed to introduce young children to scientific experiments, old and new. She created her friend Globule. This character is sometimes red, and sometimes white. He guides little ones through their scientific experiments and discoveries. It is clear to see Angélique is passionate about children and science. Globule's Approach.

Globule wonders...

Why do we float in the ocean?Globule


Experiment: Salt water

Hypotheses:


Ask children if they know the difference between the ocean (salt water) and a lake or river (fresh water). You can ask them who has gone swimming in the ocean, in a lake, in a river, in a swimming pool, in a bathtub...


Material:

An egg
A large transparent glass
4 to 6 tablespoons of salt
A spoon

Manipulations:
1. Pour water in the glass until it is ¾ full.
2. Delicately deposit the egg in the glass. Watch what happens. The egg sinks to the bottom.
3. Remove the egg from the glass.
4. Add the salt to the water and stir.
5. Once again, delicately deposit the egg in the glass. Look, this time it floats!

Explanations:
Even if we cannot see it, salt takes up lots of space in the water. It does not leave room for the egg. The egg is unable to penetrate the water so it remains on the surface.


Source: http://www.educatall.com/page/137/Salt-water.html

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