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Science DCP #2 Review 23-24

Total questions: 76

Worksheet time: 2hrs 31mins

Name
Class
Date
1.
If you replace the paper clip with a plastic spoon, what happens?
a)
The bulb doesn't light
b)
The bulb is dimmer
c)
The wires get hot
d)
There is no change
2.
Levi is wanting to light a bulb.  What does he need to get the bulb to light?
a)
A battery and a paper clip
b)
A battery and a wire
c)
A paper clip and a wire
d)
A switch and a wire
3.
A series circuit has ____ path(s) that the electric current can take. 
a)
One
b)
Two 
c)
Three 
d)
Four
4.
Which statement is true?
a)
The light bulb will light up because the  circuit is complete.
b)
The light bulb will light up because the  circuit is broken.
c)
The light bulb will not light up because the  circuit is complete.
d)
The light bulb will not light up because the  circuit is broken.
5.
An object through which electrons can easily flow is called a(n) ___________.
a)
Conductor
b)
Insulator
6.
Would would best complete this circuit?
a)
A wire
b)
A switch
c)
A battery
d)
A light bulb
7.
If bulb 1 burns out, what will occur?
a)
bulbs 2 and 3 will go out
b)
bulbs 2 and 3 receive more volts
c)
bulbs 2 and 3 will stay lit
d)
nothing will happen
8.

A student builds a circuit made up of a battery, two light bulbs, and a switch. What will the student most likely observe in this circuit?

a)

Light bulb 1 and light bulb 2 will both be on

b)

Light bulb 1 will be off, but light bulb 2 will be on

c)

Light bulb 1 and light bulb 2 will both be off

d)

Light bulb 1 will be on, but light bulb 2 will be off

9.

Students constructed a circuit using different-colored lightbulbs. What will happen if Switch 3 is closed and the other switches are left open?

a)

Only the white bulb will operate

b)

None of the bulbs will operate

c)

Only the white and yellow bulbs will operate

d)

Only the red and blue bulbs will operate

10.

The diagram shows an electric circuit with four bells that a student plans to build. When the student connects the wire as shown, which of the bells will ring?

a)

Bell 1 only

b)

Bells 1 and 4 only

c)

Bells 3 and 4 only

d)

Bells 1, 2, 3, and 4

11.
What causes day and night?
a)
Earth's orbit around the sun
b)
Earth's rotation on its axis
c)
the sun's rotation
d)
the moon's shadow
12.
What time of day does this picture represent? HINT: There is a long shadow to the west of Izzy.
a)
noon
b)
night
c)
evening
d)
morning
13.
What time of day does this picture represent based on the length and position of the shadow?
a)
noon
b)
5 pm
c)
night
d)
9 am
14.
How long does it take for the Earth to do one rotation on its axis?
a)
60 seconds
b)
24 hours
c)
365 days
d)
1 light year
15.
a)

A

b)

B

c)

C

d)

D

16.
In what direction does the Sun appear to move across the sky?
a)
West to east
b)
North to south
c)
East to west
d)
South to north
17.

Shadow casts by objects change throughout the day. The picture below shows the shadow cast by a tree at 3:00 p.m. Which picture shows how the tree's shadow most likely looked at 9:00 a.m. ?

a)
b)
c)
d)
18.

Which of these best explains why the sun appears to move across the sky each day?

a)
b)
c)
d)
19.

A student draws a model showing the movements on Earth, the moon, and the sun. Which arrow shows the movement that caused day and night on Earth?

a)

Arrow 1, because it shows the rotation of the sun

b)

Arrow 2, because it shows the orbit of Earth around the sun

c)

Arrow 3, because it shows the orbit of the moon around Earth

d)

Arrow 4, because it shows the rotation of the Earth

20.

A student draws diagrams of her house and the location of the sun in the sky. Which diagram below does NOT correctly represent the location of the sun at the time indicated?

a)
b)
c)
d)
21.

Maya designed an experiment to answer the following question: How does the amount of water given to a lima

bean seed affect how tall it grows?


In this experiment, what variable should Maya CHANGE?

a)

the amount of water

b)

the kind of plant

c)

the type of soil

d)

the amount of sunlight it gets

22.

Anthony designed an experiment to answer the following question: How does the temperature of water affect the time it takes for a sugar cube to dissolve?


Multiple answers!!! Which things should Anthony keep the same in his experiment?

a)

the amount of water

b)

the size of the sugar cubes

c)

the temperature of the water

23.

Anthony designed an experiment to answer the following question: How does the temperature of water affect the time it takes for a sugar cube to dissolve?


Which factor should Anthony CHANGE in his experiment with the sugar cubes?

a)

the amount of water he uses

b)

the size of the sugar cubes

c)

the temperature of the water

24.

Anthony designed an experiment to answer the following question: How does the temperature of water affect the time it takes for a sugar cube to dissolve?


What tool should Anthony use to measure how much time it takes for the sugar to dissolve?

a)

ruler

b)

stopwatch

c)

triple beam balance

d)

thermometer

25.

Xavier’s team designed an experiment to answer the following question. How does the surface of a ramp affect how far a toy car rolls?


Which factor should Xavier change in the experiment?

a)

the kind of car

b)

the height of the ramp

c)

the surface of the ramp

26.

Ben observed that puddles outside seem to disappear more quickly when it is a sunny day. He decided to test this by setting up an experiment in which he placed a graduated cylinder with 10 ml of water in a dark closet and a graduated cylinder with 10 ml of water by the window. Each day he measured the amount of water.


What did Ben change in this experiment?

a)

the amount of sunlight on the water

b)

the amount of water in the cup

c)

the kind of cup

27.
Students used various temperatures of water to see which one dissolved candy faster. 
What was the Independent Variable?
a)
Amount of Candy
b)
Amount of Water
c)
Temperature of Water
d)
Time for Candy to Dissolve
28.

The experiment in the picture can determine-

a)

How mass affects the force needed to move an object

b)

How force affects the mass

c)

How the force of the dictionary changes

d)

How the mass of the marbles affects the mass of the dictionary

29.

Caroline designs an experiment to determine how much force is needed to move blocks of wood of different masses. Which procedure should be included?

a)

Use a different scale to pull each block of wood

b)

Pull a different side of the block each time

c)

Use a different surface for each trial

d)

Pull the blocks the exact same way each time

30.

Katelyn designed the experiment in the picture. What does she need to fix to make it a better experiment?

a)

Use blocks of equal masses on the rubber bands

b)

Use blocks with more mass that will break the rubber bands

c)

Use more pieces of rubber bands and more blocks

31.
Students wanted to see if the distance you pulled back the bow string would effect the distance the arrow travels.  Which tool should students use to measure their dependent variable? 
a)
Meterstick
b)
Force sensor 
c)
Stop watch
d)
Ruler
32.

What is mechanical energy?

a)

Energy associated with the motion

b)

Energy caused by the movement of electrons.

c)

Energy we can see

d)

Heat energy

33.

What is electrical energy?

a)

Energy associated with the motion

b)

Energy caused by the movement of electrons.

c)

Energy we can see

d)

Energy we can hear, travels in waves

34.

What is thermal energy?

a)

Energy associated with the motion

b)

Heat energy

c)

Energy we can see

d)

Energy we can hear, travels in waves

35.

What is light energy?

a)

Energy associated with the motion

b)

Heat energy

c)

Energy we can see

d)

Energy we can hear, travels in waves

36.

What is sound energy?

a)

Energy associated with the motion

b)

Heat energy

c)

Energy we can see

d)

Energy we can hear, travels in waves

37.
Light travels
a)
around corners
b)
in a straight line
38.
Light bounces when it is 
a)
reflected
b)
absorbed
c)
refracted
39.
Light bends when it is 
a)
refracted
b)
reflected
c)
absorbed
40.
mirror
a)
absorbs
b)
reflects 
c)
refracts
41.
smooth, shiny surfaces
a)
reflect
b)
refract
c)
absorb
42.

Which object requires only mechanical energy to perform its main function?

a)

A

b)

B

c)

C

d)

D

43.

What type of energy causes ice cream to melt?

a)

thermal/heat

b)

light

c)

sound

d)

electrical

44.
Is this a heat, light, or sound source?
a)
Heat
b)
Light
c)
Sound
45.
Is this a heat, light, or sound source?
a)
Heat
b)
Sound
c)
Light
46.
______________________ is any push or pull on an object.
a)
Force
b)
Mass
c)
Gravity
d)
Air Resistance
47.
A _________ uses force to move an object towards you. 
a)
Pull
b)
Push
c)
Motion
d)
Force
48.
A ________ uses force to move an object away from you. 
a)
Push
b)
Pull
c)
Gravity
d)
Motion
49.
Which scientist gave us the laws of motion?
a)
George Washington
b)
John Adams
c)
Sir Isaac Newton
50.
If these boys are pulling with the same amount of force.  What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
51.
What pulls a ball back to earth?
a)
Gas
b)
Gravity
c)
Friction
d)
Molecules
52.
What is a force that works AGAINST MOTION?
a)
Force
b)
Motion
c)
Gravity
d)
Friction
53.
Look at the image. What two forces are happening in this picture? 
a)
Friction & Magnetism
b)
Magnetism & Gravity
c)
Friction & Gravity
54.
If you pull the cord, what direction will the box move?
a)
Up
b)
Down
c)
Left
d)
Right
55.

What should you do to make a toy car roll faster down a ramp?

a)

Push it with more force

b)

Push it with less force

c)

Remove the force of gravity

d)

Use magnetism to push it down

56.
The bending of waves as they pass from one substance into another.
a)
Reaction
b)
Reflection
c)
Refraction
d)
Repost
57.
What does light do when it hits an object that it cannot pass through?
a)
It creates a shadow
b)
It passes through anyway
58.

What types of energy does the toy oven use to bake the cakes?

a)

Light and sound

b)

Electrical and thermal

c)

Thermal and mechanical

d)

Mechanical and electrical

59.

Which of these is NOT an example of the bicycle using mechanical energy?

a)

The pedals, gears, and chin help turn the wheels.

b)

The wheels turn when the bicycle moves.

c)

The front wheel guides the bicycle as it moves.

d)

The reflector allows the bicycle to be seen at night.

60.

A physical property that describes matter as a solid, liquid, or gas

a)

relative density

b)

solubility

c)

state of matter

d)

conductivity

61.

Whether something sinks or floats in water

a)

relative density

b)

solubility

c)

conductivity

d)

state of matter

62.

Volume is __________

a)

How dense something is compared with a reference material. Sink or Float

b)

Anything that has mass and takes up space.

c)

How much space something takes up.

d)

Measurement of the ability of a solid to dissolve in a liquid.

63.

Insulator

a)

The amount of matter in something; measured in grams.

b)

Material that allows heat or electrical energy to easily flow through it.

c)

How much space something takes up.

d)

Material through which heat or electricity does not easily flow.

64.

Conductor

a)

The amount of matter in something; measured in grams.

b)

Material that allows heat or electrical energy to easily flow through it.

c)

How much space something takes up.

d)

Material through which heat or electricity does not easily flow.

65.

Magnetism is ___________

a)

The amount of matter in something; measured in grams.

b)

Material through which heat or electricity does not easily flow.

c)

How much space something takes up.

d)

The property of attraction to a magnet.

66.

Matter is ____________

a)

Anything that has mass and takes up space.

b)

The property of attraction to a magnet.

How dense something is compared with a reference material. Sink or Float

c)

Measurement of the ability of a solid to dissolve in a liquid.

d)

Energy that can be measured by a thermometer.

67.
A metal spoon was left in a pot of boiling soup. The cook burned a finger by touching the metal spoon. Why did the cook burn his finger?
a)
The metal spoon is an insulator and an insulator allows heat to pass through.
b)
The cook’s hand acted as a insulator and allowed electricity to flow.
c)
The metal spoon is a conductor and allowed heat to pass through.
d)
The boiling soup spilled out of the pot and burned his hand.
68.
A student classifies the objects shown based on their physical properties. Which objects can be classified as insulators?
a)
Cotton ball, plastic ruler, and a penny
b)
Metal paper clip, key, iron nail
c)
Rubber band, cotton ball, iron nail
d)
plastic ruler, rubber band, eraser
69.

A student puts four objects in a bucket filled with water. The objects are listed below.

-Plastic ball

-Glass Marble

-Metal Paper clip

-Wood Block

Which two objects are most likely less dense than the water?

a)

wood block and metal paper clip

b)

Plastic ball and glass marble

c)

Metal paper clip and glass marble

d)

Wood block and plastic ball

70.

What are the 4 inner planets?

a)

Mercury, Jupiter, Saturn, Pluto

b)

Earth, Venus, Mars, Neptune

c)

Mercury, Venus, Earth, Mars

d)

Jupiter, Saturn, Neptune, Uranus

71.

What are the 4 outer planets?

a)

Mercury, Venus, Earth, Mars

b)

Uranus, Mercury, Earth, Mars

c)

Jupiter, Uranus, Saturn, Neptune

d)

Jupiter, Saturn, Earth, Mars

72.

The inner planets share 2 qualities or characteristics

a)

Humans can live on them, they all have water

b)

They are rocky, and humans can find food on them

c)

They are rocky and close to the Sun

d)

They are close to the Sun, and humans can live on them

73.

The first planet, closest to the Sun, and the smallest planet. Is extremely hot during the day and freezing cold at night.

a)

Mercury

b)

Jupiter

c)

Venus

d)

Uranus

74.

The fourth planet from the Sun, called the Red planet, and extensively explored and observed

a)

Neptune

b)

Venus

c)

Jupiter

d)

Mars

75.

What are the 2 characteristics of the 4 outer planets.

a)

They are rocky and small in size

b)

Larger planets and made of gas

c)

Closer to the Sun and made of gas

d)

Farther from the Sun and made of gas

76.

If you saw a full moon today, how long would you have to wait to see another full moon?

a)

One day

b)

One week

c)

One month

d)

One year