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iLearn Science Review

Total questions: 52

Worksheet time: 52mins

Name
Class
Date
1.

A possible explanation for a problem that has not yet been tested is known as a ___________.

a)

data

b)

theory

c)

hypothesis

d)

fact

2.

Which type of variable in an experiment is the one being deliberately changed by the scientist?

a)

dependent variable

b)

independent variable

c)

data

d)

constants

3.
Should experiments be repeated over and over to see if the results are the same each time?
a)
yes
b)
no
4.

The summary at the end of an experiment that explains the results is known as a ______________.

a)

conclusion

b)

procedures

c)

materials

d)

responding variable

5.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
6.

A slingshot that has been pulled back, but has not been let go.

a)

Kinetic

b)

Potential

7.

A bobsled is moving at its greatest speed around the final turn.

a)

Kinetic

b)

Potential

8.

A grasshopper reaches the highest point in its jump from one plant to another.

a)

Kinetic

b)

Potential

9.

A satellite that is orbiting the earth at nearly 20,000 miles/hour.

a)

Kinetic

b)

Potential

10.

An arrow is released from a bow and travels towards the target.

a)

Kinetic

b)

Potential

11.

Sound is made when a source of energy forces the matter around it to __________.

a)

Vibrate

b)

Amplitude

c)

Stay still

d)

Pitch

12.

Sound waves CANNOT travel through which of these:

a)

Paper

b)

Milk

c)

Outer space

13.
High Amplitude =__________________
a)
Louder sounds
b)
Quieter Sounds
14.
Low Amplitude = ______________
a)
Quieter Sounds
b)
Louder sounds
15.
Low frequency = _______ Pitch
a)
Low
b)
High
16.
High frequency = _______ Pitch
a)
High
b)
Low
17.
The light we can see. 
a)
visible
b)
gamma
c)
ultraviolet
18.
The highest point on a wave
a)
trough
b)
amplitude
c)
crest
d)
wavelength
19.
Light is a form of 
a)
energy
b)
radiation
c)
reflection
20.
What is reflection in simple terms?
a)
Soaks up light
b)
Passes through
c)
light bounces off
21.
What does refract mean?
a)
To shrink
b)
To bend
c)
To widen
d)
To enlarge
22.
The order of the planets is:
a)
Mars,Venus,Earth,
Mercury,Saturn
Jupiter, Uranus, Neptune
b)
Earth,Venus,Mars
Jupiter, Neptune,
Mercury,Saturn,
Uranus
c)
Mercury,Venus,Earth
Mars,Jupiter,
Saturn,Uranus
Neptune
23.
The spinning of an object on its axis is called______
a)
orbit
b)
rotation
c)
revolution
d)
tide
24.
Day and night is caused by the _____________ of earth on its axis.
a)
revolution
b)
orbit
c)
rotation
25.
The earth orbits around...
a)
the sun.
b)
the moon
c)
other planets
d)
the Milky Way
26.
What are the reasons for the seasons?
a)
Earth's tilt and rotation.
b)
Earth's rotation and revolution.
c)
Earth's tilt and revolution.
d)
Earth's tilt and resolution
27.
When the Northern Hemisphere of Earth is Leaning away from the Sun, What season is the Southern Hemisphere experiencing?
a)
Summer
b)
Winter
c)
Spring
d)
Fall
28.
CHOOSE THE CORRECT MOON PHASE
a)
FULL MOON
b)
NEW MOON
c)
WAXING GIBBOUS
d)
WAXING CRESCENT
29.
CHOOSE THE CORRECT MOON PHASE
a)
FIRST QUARTER
b)
LAST QUARTER
c)
CRESCENT MOON
d)
NEW MOON
30.
CHOOSE THE CORRECT MOON PHASE
a)
NEW MOON
b)
FULL MOON
c)
WAXING GIBBOUS
d)
NONE OF THE ABOVE
31.
CHOOSE THE CORRECT MOON PHASE
a)
WANING GIBBOUS
b)
WAXING GIBBOUS
c)
FULL MOON
d)
WAXING CRESCENT
32.
THE WORD "WANING" MEANS TO
a)
APPEAR TO GROW
b)
APPEAR TO GET SMALLER
33.
THE WORD "WAXING" MEANS TO
a)
APPEAR TO GROW
b)
APPEAR TO GET SMALLER
34.

All of the living and non-living parts of the environment in the same area.

a)

Population

b)

Community

c)

Organism

d)

Ecosystem

35.

Click on all the abiotic factors

a)

Rabbit

b)

soil

c)

water

d)

sunlight

36.

Click on all the biotic factors

a)

rabbit

b)

tree

c)

soil

d)

water

37.

Producers are important because they

a)

create shade for frogs

b)

smell nice

c)

use energy from the sun to make their own food and are the base of energy pyramids

d)

create homes for birds and squirrels

38.

What is the role of decomposers

a)

They break down dead organisms and return their nutrients back to the ecosystem.

b)

Supply energy to the sun

c)

Help organize the community

d)

Create energy from the sun

39.

Consumers are

a)

organisms that help break down dead material

b)

organisms that create energy from the sun

c)

organisms that live in the ocean

d)

Organisms that get their energy from eating other organisms.

40.

In the food chain Carrots--->Rabbit--->Fox. The fox is a

a)

Producer

b)

First level consumer

c)

Second level consumer

d)

Decomposer

41.

In the food web list all the producers.

a)

Fox and Owl

b)

Bird and mouse

c)

Grasshopper and rabbit

d)

Carrots, grasses, and grains

42.
Which is an abiotic part of an ecosystem?
a)
feather
b)
dead log
c)
spider web
d)
clouds
43.
Which is not an abiotic factor?
a)
dead leaf
b)
water
c)
sand
d)
carbon dioxide
44.
A relationship where both organisms benefit is called __________.
a)
mutualism
b)
commensalism
c)
parasitism
45.
A relationship where one organism benefits and one organism is harmed is called __________.
a)
mutualism
b)
commensalism
c)
parasitism
46.
A relationship where one organism benefits and one organism is unaffected is called __________.
a)
mutualism
b)
commensalism
c)
parasitism
47.
What is the formula to calculate speed?
a)
S = t/d
b)
S = d/t
c)
S = d x t
d)
S = t x d
48.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
49.
A runner races in the 100 meter dash (distance).  It takes her 10 seconds to finish (time).  What is her average speed?
a)
10 m/s
b)
1000 m/s
c)
100 seconds
d)
10 seconds
50.
Juan rode his bike west at a speed of 5 miles per hour.
a)
Speed
b)
Velocity
51.
The airplane flew at a speed of 300 miles per hour.
a)
Speed
b)
Velocity
52.
The airplane flew toward Dallas at a speed of 300 miles per hour.
a)
Speed
b)
Velocity

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