Practice #1

The picture below shows a piece of butter in the frying pan. If the stove is turned on, the butter will change from ____________,

• a. liquid to gas

• b. gas to liquid

• c. solid to liquid

• d. liquid to solid

Liza flattened a pizza dough using a rolling pin. Which of the following actions did she use to change the pizza dough’s shape?

• a. bending

• b. hammering

• c. pressing

• d. stretching

Angelo is playing with his modeling clay. As he pressed it, he was able to make different toys as shown in the pictures below.

Which of the following describes the modelling clay when it was pressed by Angelo? The clay changed its________.

• a. size and color

• b. size and shape

• c. volume and odor

• d. volume and color

Which of the following changes described when the stones were hammered by Angelo? The stones changed their____.

• a. size and color

• b. size and shape

• c. volume and odor

• d. volume and color

All of these are characteristics of solid, EXCEPT one. Which one is it?

• a. Solids are hard.

• b. Solids have compact particles.

• c. Solids may change its physical appearance.

• d. Solids do not change its shape when you cut them.

How do the heart and lungs work together?

• a. The lungs help the heart to pump blood.

• b. The heart provides nutrients to the lungs.

• c. The lungs help the heart provide nutrients to the body.

• d. The heart pumps the blood to the different body parts while the lungs filter the blood before going back to the heart.

Your friend had an accident which damaged his brain. After the accident, he cannot move both of his legs. Why did this happen?

• a. Your legs cannot anymore detect your brain.

• b. The part of your legs connected to the brain was damaged.

• c. The part of your brain commands your legs to stop moving.

• d. The part of your brain that controls leg movement was affected.

The following statements are true, EXCEPT _______________.

• a. All body organs have different functions that are not related with each other.

• b. The brain controls the functions of the heart, lungs, kidneys, and other body organs.

• c. If one organ of the body will not function properly, other body parts will also be affected.

• d. All body organs have different functions and are in constant communication with one other.

What do you call the suitable environment for organisms that provide a wide range for their needs?

• a. food

• b. shelter

• c. space

• d. water

Which of the following will happen if organisms will not have a suitable environment to live in?

• a. Their number will increase.

• b. Their number will decrease.

• c. They will satisfy their needs.

• d. Their number will be the same