SCIENCE 3: 4th Quarter SUmmative Test

Biotic factors are the living parts of an ecosystem. Which of the following is not a biotic factor?

• a. Consumer

• b. Decomposers

• c. Producers

• d. Water

What is an ecosystem?

• a.    It is an environment.

• b.    It is a living organism.

• c.    It is composed of living things and their environment.

• d.    It is a group of people living in the same place or having a particular characteristic in common.

It is important to protect and conserve the environment for the survival of living things. Which of the following does not exhibit conserving and protecting the environment?

• a.    Allow people to cut trees without planting new ones.

• b.    Conserve electricity by turning off appliances when not in use.

• c.    Dispose of your garbage properly. Do not throw trash in the street or in bodies of water.

• d.    Help plant trees and other plants in your community and in places where there are no trees.

Force is the of push or pull exerted on an object to move, stop, or change direction. Which of the following does not exhibit force?

• a. Cleaning the house.

• b. Pushing a chair.

• c. Playing a seesaw.

• d. Standing near the door.

What do you call the basis to tell the position or the fixed place of an object?

• a. Distance

• b. Meter stick

• c. ruler

• d. reference point

 Look at the picture carefully and identify the correct position of the plant. Write your answer on the line.

Distance is the measure of space between to objects.  Which of the following can measure the distance of two object?

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When an object changes its position, it is in motion. Tell how the following objects move. Type your answer.

BOUNCING BALL

When an object changes its position, it is in motion. Tell how the following objects move. Type your answer.

PENDULUM

II. Essay: Why is the environment important to living things? Write your answer in the space provided.