SCIENCE 4

1. Which of the following properties of materials allows air and liquid to pass through them?

• ductility

• density

• malleability

• porosity

2. There are two trash bins, one is labeled as biodegradable and the other one is labeled as non-biodegradable. Which of the following groups of materials will you throw in the biodegradable bin?

• banana peelings, dried leaves, spoiled leftover food

• dead animal, animal manure, broken glass jar

• plastic bottles, empty cans, candy wrappers

• vegetable peelings, rubber tires, plastic bags

3. Which of the following sentences best describes apples?

• Apples absorb water, sink in water, and undergo decay.

• Apples absorb water, float on water, and do not undergo decay

• Apples do not absorb water, float on water and undergo decay.

• Apples do not absorb water, sink in water, and undergo decay.

4. What do you think will happen if you leave a loaf of bread on the table for two weeks?

• It will taste better and will become more delicious.

• It will absorb moisture and will become bigger.

• It will grow molds and will smell like spoiled food.

• It will not change, nothing will happen.

5. Sponges, towel, rug, tissue paper, and a cork. What do these materials have in common?

• They are porous materials.

• They are hazardous materials.

• They are non-porous materials.

• They are biodegradable materials.

6. To make pizza for her children, Mommy Rissa flattened the dough using a rolling pin. Which of the following actions did she use to change the shape of the pizza dough?

• bending

• cutting

• hammering

• pressing

Brianna needed to cut old newspapers for her Arts subject. What changes will happen if she cuts a page of the newspaper?

• The newspaper will change its shape but not its size.

• The newspaper will change its size but not its shape.

• The newspaper will change both its size and shape.

• The newspaper will not change its size and shape.

8. Which of the following changes will happen to solid materials when they are bent, pressed, hammered, or cut?

• They will change in size and color.

• They will change in size and shape.

• They will change in texture and odor.

• They will change in texture and color.

Mang Ambo is a potter. He makes pots and vases by pressing and molding clay as shown in the picture. Which of the following describes what happens to the clay when it was pressed and molded?

• The clay changes its size and color.

• The clay changes its size and shape.

• The clay changes its odor and texture.

• The clay changes its color and odor.

Sarah was tasked to bring 50 pieces of soda cans for their group activity on recycling. She wanted the soda cans to fit in only one sack so she can bring them to school at one time. What can she do to make it possible?

• She can cut the soda cans to make them smaller in size and fit them in one sack.

• She can hammer the soda cans to make them smaller in size and fit them in one sack.

• She can press the soda cans to make them smaller in size and fit them in one sack.

• All of these