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Photosynthesis & Plants

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What do plants need to make their own food?

SELECT 3 ANSWERS

a)

H2O (water)

b)

CO2 (carbon dioxide)

c)

sunlight

d)

oxygen

e)

sugar

2.

What is the chemical formula for glucose?

a)

C6H12O6

b)

H2OCO2

c)

CO2

d)

CH2O

3.

What is glucose?

a)

the sugar (food) that plants make

b)

a gas that plants use

c)

a kind of soil to plant seeds in

d)

another word for water

4.

What are two (2) other names for plants?

CHOOSE 2

a)

herbivore

b)

producer

c)

autotroph

d)

carbon dioxide

5.

What is the purpose of a plant's roots?

a)

to transport water to the rest of the plant

b)

to take in water & nutrients from the soil

c)

to help the plant move around

d)

to spread seeds around

6.

What is the purpose of a plant's stem?

a)

to make seeds

b)

to take in water from the soil

c)

to bring in oxygen

d)

to transport water to the rest of the plant

7.

What is the formula for photosynthesis?

a)

CO2 + H2O + sunlight = C6H12O6 + 6O2

b)

oxygen + carbon dioxide + water = sunlight + sugar

c)

sunlight + CO2 = H2O + C6H12O6 + O2

d)

glucose + oxygen = carbon dioxide + water + sunlight

8.

What is missing in the photosynthesis equation?


__________ + carbon dioxide + water = glucose + oxygen

a)

water

b)

oxygen

c)

carbon dioxide

d)

sunlight

9.

What atoms make up water?

a)

two hydrogen atoms and one oxygen atom

b)

two oxygen atoms and one hydrogen atom

c)

2 carbon atoms and 1 oxygen atoms

d)

2 hydrogen atoms and 2 carbon atoms

10.

What is the smallest building block of EVERYTHING?

a)

lego blocks

b)

atoms

c)

molecules

d)

water

11.

What does the word part "photo" mean?

a)

dark

b)

light

c)

plant

d)

put together

12.

What are the reactants of photosynthesis?

a)

glucose & oxygen

b)

oxygen, carbon dioxide, & water

c)

sunlight, carbon dioxide, & water

d)

water, glucose, and oxygen

13.

What are the products of photosynthesis?

a)

glucose & oxygen

b)

oxygen & sunlight

c)

carbon dioxide & water

d)

water & oxygen

14.

What is in plants' leaves that makes the glucose for the plant?

a)

chlorophyll

b)

stomata

c)

oxygen

d)

water

15.

What are the tiny holes in plants' leaves that bring in carbon dioxide?

a)

stomata

b)

chlorophyll

c)

water

d)

atoms

16.

What gives plants their green color?

a)

the roots

b)

water

c)

stomata

d)

chlorophyll

17.

What is the purpose of a plants' leaves?

a)

to look pretty

b)

to collect sunlight & make food

c)

to bring in water from the soil

d)

to attract insects

18.

What kind of tree lives in water and has "knees" that stick up above the water?

a)

cypress tree

b)

oak tree

c)

pine tree

d)

apple tree

19.

What kind of plant grows on a tree until it is large enough to steal its water and its sunlight and eventually kills the tree?

a)

pine tree

b)

cypress tree

c)

strangler fig

d)

mushroom vine

20.

Have you finished your science homework?

a)

yes

b)

yes, and I am very proud of my work

c)

no