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Science Unit 6 Test Review - Mr. Cook

Total questions: 17

Worksheet time: 17mins

Name
Class
Date
1.

What is the process that plants use to produce food?

a)

carbon dioxide

b)

photosynthesis

c)

chloroplast

d)

sunlight

2.

This producer uses a molecule called chlorophyll.

(Picture of a bush)


Which need does chlorophyll help to meet?

a)

making food

b)

releasing oxygen

c)

absorbing soil nutrients

d)

taking in carbon dioxide

3.

Which type of organism makes its own food?

a)

consumer

b)

decomposer

c)

producer

d)

scavenger

4.

What does a food web show?

a)

how predators catch prey

b)

what food organisms eat

c)

why organisms find food

d)

when organisms seek food

5.

Which kind of diagram shows how much energy passes along as one organism consumes another?

a)

decomposition

b)

energy pyramid

c)

food chain

d)

food wed

6.

Which of these shows the flow of energy in a food chain?

a)

decomposers → consumers → plants → producers

b)

sun → consumers → producers → decomposers

c)

producers → predators → decomposers → consumers

d)

sun → producers → consumers → decomposers

7.

In a forest food chain, what is the connection between the sun and a tree?

a)

The sun helps chlorophyll turn oxygen into carbon dioxide.

b)

The tree shades animals from the sun and gives them nutrients.

c)

The sun heats up the ground so the tree’s roots can take in water.

d)

The tree uses the sun’s energy to make food through photosynthesis.

8.

Alex notices a small spot of fungus growing on an orange in the back of his refrigerator. He doesn’t eat the orange. He looks at the orange again a week later. Which of these is he most likely to observe?

a)

The fungus has gone away.

b)

The fungus has not changed.

c)

The fungus has grown larger.

d)

The fungus has changed color.

9.

Which of these happens during the time a fallen log is decomposing?

a)

The fallen log slowly begins to die.

b)

The fallen log continues to produce food.

c)

The materials in the log combine into new, complex parts.

d)

The materials in the log are broken into smaller, simpler parts.

10.

Notice the bacteria at the end of the food chain. Why are bacteria shown at the end of the food chain?

a)

They are producers, and make food from sunlight.

b)

They are consumers, and feed off of the dead hawk.

c)

They are decomposers, and break down the dead hawk.

d)

They are consumers, and the smallest organisms in this chain.

11.

Hawks eat snakes. Snakes eat toads. Toads eat grasshoppers. Grasshoppers eat plants. Which of the statements below about this food chain is correct?

a)

A toad is a herbivore.

b)

A grasshopper is a producer.

c)

A hawk is a second-level consumer.

d)

A snake is a first-level consumer.

12.

Where does a deer fit in its food chain?

a)

as both a first-level and a secondlevel consumer

b)

as both consumer and prey

c)

as both producer and consumer

d)

as both consumer and scavenger

13.

Jackson and Kathryn were assigned to observe the growth of fungus on a hamburger bun. They sprayed one half of the bun with water and sealed it in a plastic bag. They left the other half of the bun dry and sealed it in a different plastic bag. Over time, what did they observe?

a)

Mold grew faster on the dry bun.

b)

Mold grew the same on both buns.

c)

Mold did not grow inside sealed bags.

d)

Mold grew faster on the moistened bun.

14.

During the decomposition process, the wastes of living organisms and the remains of dead organisms are broken down and their nutrients are returned to the soil. What is the most important cause of decomposition?

a)

air

b)

sunlight

c)

scavengers

d)

bacteria and fungi

15.

Which of the following does a plant use in the process of photosynthesis?

a)

oxygen, sugar, and water

b)

sunlight, oxygen, and sugar

c)

water, carbon dioxide, and sunlight

d)

carbon dioxide, sugar, and sunlight

16.

Which of the following is an example of a producer?

a)

a caterpilar

b)

a robin

c)

a tree

d)

a worm

17.

Which of these is a decomposer?

a)

bread

b)

heat

c)

mold

d)

water