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Science CDB Review

Total questions: 33

Worksheet time: 17mins

Name
Class
Date
1.

Which adaptations help a water snake survive in its environment?

a)

tongue to see prey

b)

camouflage

c)

gills to breathe underwater

d)

scales to keep body warm

2.

What sentence describes the change in chocolate?

a)

The chocolate changed from a gas to a liquid

b)

The chocolate changed from a liquid to a gas

c)

The chocolate changed from a solid to a liquid

d)

The chocolate changed from a liquid to a solid

3.

Which statement is NOT true about the energy flow in the food web above?

a)

The bird gets energy from the worm

b)

The worm gives energy to the snake

c)

The leaf gets energy from the snake

d)

The cricket gives energy to the mouse

4.

Which comes second in the life cycle of a frog?

a)

adult frog

b)

tadpole

c)

froglet

d)

egg

5.

What can cause a melted crayon to turn into a solid?

a)

The crayon was melted with an iron

b)

The crayon was left to dry on a paper plate

c)

The crayon was placed in the heat outside

d)

The crayon was placed in the microwave

6.

What are some examples of natural resources? Click all that apply.

a)

water

b)

coal

c)

glass

d)

water bottles

e)

wind

7.

If all worms were eliminated from this food web, which animal population would decrease the most?

a)

bird

b)

mouse

c)

snake

d)

cricket

8.

How does the wetland ecosystem support animals that do not live in the water? (Pick 2 answers)

a)

grassy lands that help provide shelter

b)

recycled goods help grow the grassy areas

c)

shallow water to help catch food

d)

Humans use wetland areas to help build communities

9.

If all Legos are purchased at Walmart, that means the price will go...

a)

stay the same because the demand is low

b)

down because the demand is high

c)

up because the demand is high

d)

stay the same because the demand is high

10.

What is a negative impact a citizen has on their community?

a)

Volunteering at the local animal shelter

b)

Cleaning up their mess in a park

c)

Planting seeds in your backyard to feed the birds

d)

Writing on the walls of a school

11.

What does it mean to give your "consent"?

a)

Give your advice

b)

Give your approval

c)

Give your opinion

d)

Give your freedoms away

12.

What does it mean to vote?

a)

Voting can help bring change in the government

b)

Voting is only something only officials can do in the government

c)

Voting is not a right of Americans

d)

Voting means we are free in the United States

13.
What lives in a wetland?
a)
dogs, cats and horses
b)
frogs, snakes and ducks
c)
cows, crabs and gulls
14.
These are the three main jobs of wetlands.
a)
provide habitats, store flood waters, purify water
b)
provide habitats, store plant life, purify water
c)
purify water, store wildlife, provide habitats
d)
purify the land, store flood waters, provide habitats
15.
A group of people who make laws, carries out laws, and decides if laws have been broken is called ______________.
a)
an army
b)
government
c)
a police officer
d)
a president
16.
What does equality mean?
a)
Men have more rights than women
b)
people are treated differently
c)
everyone has the same amount of money
d)
all people are treated fairly
17.
If the price of printers goes down, what happens in the market for ink cartridges?
a)
Supply increases.
b)
Supply decreases.
c)
Demand increases.
d)
Demand decreases
18.
The life cycles of a frog and plant are similar because they both
a)
have the same parents 
b)
go through stages of growth
c)
are the same color 
d)
require a dry habitat 
19.
An adult butterfly-
a)
changes into a caterpillar
b)
becomes a pupa
c)
climbs into a chrysalis
d)
lays eggs
20.
What are plants called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Scavengers
21.
What are animals called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Plants
22.
Where does the energy start in this food chain?
a)
Plant
b)
Sun
c)
Deer
d)
Wolf
23.
What is the role of decomposers in a food chain?
a)
Use sunlight to make food
b)
Eat other organisms to gain energy
c)
Make the food for the whole food chain
d)
Break down dead organisms and add nutrients to the soil
24.
Which type of consumer eats plants only?
a)
Herbivores
b)
Omnivores
c)
Carnivores
d)
Scavengers
25.
Which type of consumer eats meat only?
a)
Producers
b)
Herbivores
c)
Carnivores
d)
Omnivores
26.
Which of these organisms would receive energy from the snake?
a)
Plant
b)
Rabbit
c)
Mouse
d)
Hawk
27.
Which type of consumer eats meat and plants?
a)
Herbivores
b)
Carnivores
c)
Omnivores
d)
Plants
28.
Which of the following is a producer?
a)
Maple tree
b)
Sunfish
c)
Bunny
d)
Bear
29.
A student took ice cream outside on a summer day. The heat would cause what kind of change?
a)
a solid becoming a liquid
b)
a liquid becoming a gas
c)
a liquid becoming a solid 
d)
a gas becoming a liquid
30.
A drop of water was placed in a hot pan and seemed to disappear. The heat caused the water to....
a)
melt
b)
freeze
c)
evaporate
d)
gel
31.
When an ice cube is placed on the sidewalk on a hot day, what is the series of changes to it's physical state that occurs?
a)
gas, solid, liquid
b)
solid, gas, liquid
c)
solid, liquid, gas
d)
liquid, solid, gas
32.
As the ice cube melts, what will change?
a)
volume 
b)
mass
c)
shape
33.
When you melt a solid, do you add heat or take heat away?
a)
Add heat
b)
Take heat away

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