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Worksheets

Life Science

Total questions: 25

Worksheet time: 25mins

Name
Class
Date
1.

Which organ in the illustration is the stomach?

a)

W

b)

X

c)

Y

d)

Z

2.

Which organ in the illustration is the liver?

a)

W

b)

X

c)

Y

d)

Z

3.

Which organ in the illustration is the intestines?

a)

W

b)

X

c)

Y

d)

Z

4.

This is the organ that filters a person's blood and when it does not work properly can give a persons skin and eyes a yellowish color.

a)

Heart

b)

Liver

c)

Lungs

d)

Pancreas

5.

Which type of scientist studies the human body, organs, and cells?

a)

geologist

b)

biologist

c)

meteorologist

d)

astronomer

6.

You scrape your knee at recess, and put a bandage on your skin. Which of the functions below that are normally provided by skin is now being provided by the bandage?

a)

preventing dehydration

b)

regulating body temperature

c)

keeping bacteria out of the body

d)

sensing when your skin has been touched

7.

A scientist has a rock sample that he says was under water at one time. Which statement is evidence to support his claim?

a)

The scientist is an expert on rocks.

b)

The rock has fish skeleton fossils inside it.

c)

Many people agree with the scientist’s claim.

d)

Other scientists believe the rock was under water, too.

8.

Which structure in a plant has a function similar to the function of a skeleton in a mammal?

a)

exoskeleton

b)

flower

c)

leaf

d)

stem

9.

During dry seasons, alligators make deep holes in the wetlands. Why has the alligator adapted to make a hole its home during these seasons?

a)

to protect eggs in its nest

b)

to provide a habitat to other animals

c)

to cool off during the hot temperatures

d)

to stay warm during the cool temperatures

10.

Which plant structure is MOST similar in function to a lizard's eggs?

a)

flowers

b)

pollen

c)

seeds

d)

stem

11.

A student predicts that if marigold flowers are planted around a group of tomato plants, then fewer insects will eat the tomatoes. Which observation would support the prediction?

a)

a count of 20 insects before marigolds are planted, and 20 insects after marigolds are planted

b)

a count of 20 insects before marigolds are planted, and 12 insects after marigolds are planted

c)

a count of 10 tomatoes before marigolds are planted, and 5 tomatoes after marigolds are planted

d)

a count of 10 tomatoes before marigolds are planted, and 15 tomatoes after marigolds are planted

12.

Amphibians are able to exchange oxygen and carbon dioxide through their smooth, moist skin. Which of these organs has the same purpose?

a)

heart

b)

liver

c)

lungs

d)

stomach

13.

Look at the pictures of wetland birds. Which of the following numbers goes with the bird that is NOT well adapted to finding food during high water levels?

a)

1

b)

2

c)

3

d)

4

14.

Which statement describes how a specific feature of the bald eagle BEST helps it to survive in its environment?

a)

Its keen eyesight helps it to see prey from the sky.

b)

Its sharp, curved beak helps it to find food on the ground.

c)

Its white and brown feathers help it to hide from predators.

d)

Its powerful toes and long talons help it to swim after prey.

15.

Human organs and organ systems each have specific functions, or jobs. For example, the function of the stomach is to digest food. Which pairing matches an organ with its main function?

a)

muscles: structure

b)

jaw bone: balance

c)

lung: getting rid of oxygen

d)

intestines: transporting nutrients and wastes

16.

In the rainforest, plants that live on the forest floor have different adaptations from plants that live high up in the canopy. What is the MAIN reason that the leaves of plants on the forest floor are much wider than those found in other areas of the forest?

a)

These plants produce poisons that plants in other areas do not.

b)

These plants need to take in more water than plants in other areas do.

c)

These plants have less access to light than plants in other areas have.

d)

These plants have more natural predators than plants in other areas have.

17.

Which organ in the illustration is the heart?

a)

W

b)

X

c)

Y

d)

Z

18.

a)
b)
c)
d)
19.

a)

Energy is transferred from white-tail deer to mountain lions to wild hogs.

b)

Energy is transferred from mountain lions to wild hogs to corn.

c)

Energy is transferred from grass to white-tail deer to mountain lions.

d)

Energy is transferred from corn to duck to wild hogs to white tail deer.

20.

a)

fish and duck

b)

cattails and water lily

c)

heron, raccoon, turtle

d)

mosquito, snail, frog

21.

What is the primary function of the mitochondria in a cell?

a)

Energy production

b)

Protein synthesis

c)

DNA replication

d)

Photosynthesis

22.

Which of the following is a characteristic of all living organisms?

a)

Ability to move

b)

Ability to reproduce

c)

Ability to see

d)

Ability to think

23.

In an experiment, a scientist wants to test the effect of light on plant growth. What is the independent variable?

a)

Amount of water

b)

Type of plant

c)

Amount of light

d)

Growth of the plant

24.

Which process is responsible for the conversion of glucose into energy in the human body?

a)

Photosynthesis

b)

Respiration

c)

Fermentation

d)

Digestion

25.

What is the role of chlorophyll in photosynthesis?

a)

Absorbs water

b)

Absorbs sunlight

c)

Releases oxygen

d)

Stores glucose