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If a pane of glass is broken it won't put itself back together again. The change is permanent!

Materials - Changing Things

This Science quiz is called 'Materials - Changing Things' and it has been written by teachers to help you if you are studying the subject at elementary school. Playing educational quizzes is a fun way to learn if you are in the 1st or 2nd grade - aged 6 to 8.

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Materials don’t always stay the same. If you stretch a rubber band, it will bounce back again. But if you chop up a carrot, you can’t put the carrot back together again. When you are baking a cake, the ingredients all look different. But when you mix them together and cook them, they change and become a new material. The cooked cake doesn’t look like any of the ingredients. Let’s find out a bit more about how materials change.

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1 .

The candle is made of wax. The candle is:

Freezing

Boiling

Burning

Getting bigger

As the candle burns, there is less and less candle wax

2 .

Danny and Alex are making a cake. The ingredients are flour, butter and eggs. What must they do with the ingredients?

Put the flour in the oven and fry the eggs

Mix the flour, butter and eggs together

Only use the flour

Only use the eggs

Have you ever baked a cake?

3 .

This candle has been burning for a long time. Some of the wax has melted and run down the sides of the candle. Then the wax has cooled and turned back into a _____.

Solid

Gas

Liquid

Fluid

Do you have candles on your birthday cake?

4 .

Joe is blowing up a red balloon. The balloon is getting very big. Joe does not tie the balloon. He lets go of the balloon. It shoots off and all the air comes out. What happens to the size of the balloon?

The balloon goes back to its original size

The balloon gets even bigger

The balloon stays really big

The balloon disappears

Balloons are like springs and rubber bands. They can go back to their original size

5 .

Karen is making a cup of tea. She pours milk into the tea and stirs it. The milky tea is a mixture. What is mixed together?

Milk and coffee

Tea and coffee

Tea and milk

Milk and sugar

Do you like drinking tea or coffee?

6 .

If you stretch a spring - not too much - the spring gets longer. If you then let go of the spring, what happens?

The spring gets even longer

The spring straightens out

The spring gets shorter again

The spring loses its shape

The spring can go back to its original shape and size

7 .

Li cuts a piece of card in two. When she lets go of the two pieces of card, what happens?

The two pieces of card go back together again

The two pieces of card stay separate

The two pieces of card get much bigger

The two pieces of card disappear

Li can stick the pieces back together, but they don’t go back like a spring or a rubber band

8 .

Carla is making ice cubes in the freezer. She pours water into the trays. She puts the trays into the freezer. The water freezes into ice.

Later, Carla takes the ice cubes out of the freezer. She leaves them in a warm room. What happens to the ice cubes?