First Periodical Test in Science 4

Which of the following materials sink in water?

• logs

• coin

• pencil

• rubber slippers

Which of these materials undergo decay?

• plastic bottle

• paper

• plastic cup

• dead animals

Why do boats float in water?

• The sea breeze makes the boat float in water.

• Man uses paddle to make the boat float.

• Boats are made of wood that make them float.

• The boat is tied with plastic string that makes it float.

If you are going to dispose waste materials commonly found at home, what are you going to do with the decaying materials?

• make a compost

• mix them with the non-decaying materials

• throws them in the river

• keep them in the cabinet and uses them again

Your mother asked you to give her medicine for fever. What are you going to do first?

• Read the label of the medicine.

• Get the medicine and give it right away to your mother.

• Get a glass of water and the medicine.

• Taste the medicine before giving it your mother.

If you are exposed to garbage, what kind of illness would you probably get?

• goiter

• nose bleed

• heart failure

• asthma

A glass of water spilled on the table. You want to dry the table at once. What are you going to use?

• rug made of cloth

• handkerchief

• cotton

• tissue paper

Why it is important to read the label of the product?

• to get the number of pieces sold in the market

• to know the price of the product

• to know who buy the product

• to use the product correctly

Which of these garbage materials do not undergo decay?

• used cooking oil

• 
• leftover food

• fruit peelings