Free Printable Science 8 SEP Unit Test Review

1.

To avoid dangerous fumes the student should _______the odor toward his nose.

a)

blow

b)

waft

c)

raft

d)

stir

2.

a)

No food in the lab

b)

Open flame

c)

Dispose of wrappers properly

d)

Be careful to avoid explosions

3.

Which safety symbol should she have paid attention to before starting the lab?

a)

b)

c)

4.

Before starting an investigation or lab procedure, you should

a)

try an experiment on your own

b)

open all containers and packages

c)

read all directions and make sure you understand them

d)

handle all the equipment to become familiar with it

5.

If you get hurt or injured in any way, you should

a)

tell your teacher immediately

b)

find bandages or a first aid kit

c)

go to the principal's office

d)

get help after you finish the lab

6.

If you have unused liquids after finishing your procedure, you should

a)

mix them together in a bucket

b)

put them back into their original containers

c)

put them away where your teacher tells you to put them

7.

When working with a flame or heat source, you should

a)

tie back long hair that hangs in front of your eyes

b)

heat substances or objects inside a closed container

c)

touch an object with your bare hand and see how hot it is

d)

throw hot objects into the trash when you are done with them

8.

Goofing around in the lab is acceptable

a)

True

b)

False

9.

Evidence is ___________________

a)

A statement or conclusion that answers a question

b)

Scientific data that supports the claim

c)

A justification that connects the claim to the evidence

d)

Not vital when using an argument

10.

Reasoning is __________________.

a)

A statement of conclusion that answers the original question/problem

b)

Scientific data that supports the claim

c)

A justification that connects the evidence to the claim

d)

Empirical Evidence

11.

"I like KFC more than McDonalds!"

Is this a claim, evidence or reasoning?

a)

Claim

b)

Evidence

c)

Reasoning

12.

"Rhinos have horns"

Is this a claim, evidence or reasoning?

a)

Claim

b)

Evidence

c)

Reasoning

13.

"Plants need sunlight, water and carbon dioxide to make food."

Is this a claim, evidence or reasoning?

a)

Claim

b)

Evidence

c)

Reasoning

14.

"Material A is a better conductor of heat. It gained heat faster than Material B. Good conductors of heat gains heat quickly."

Which of these statement is an Evidence?

a)

Material A is a better conductor of heat.

b)

It gained heat faster than Material B.

c)

Good conductors of heat gains heat quickly.

15.

What is the claim?

Mass does not affect how quickly an object falls. In our experiment, the blocks had different masses, 20 g., 30 g., 44 g., 123 g and 142 g but the time for all five blocks to fall was about the same. It took between 1.5 and 1.8 seconds for them to fall. Since the blocks had different masses but took about the same time, I know that mass does not affect how quickly something falls.

a)

In our experiment, the blocks had different masses, 20 g., 30 g., 44 g., 123 g and 142 g but the time for all five blocks to fall was about the same. It took between 1.5 and 1.8 seconds for them to fall.

b)

Mass does not affect how quickly an object falls.

c)

Since the blocks had different masses but took about the same time, I know that mass does not affect how quickly something falls.

16.

What is the evidence?

Mass does not affect how quickly an object falls. In our experiment, the blocks had different masses, 20 g., 30 g., 44 g., 123 g and 142 g but the time for all five blocks to fall was about the same. It took between 1.5 and 1.8 seconds for them to fall. Since the blocks had different masses but took about the same time, I know that mass does not affect how quickly something falls.

a)

In our experiment, the blocks had different masses, 20 g., 30 g., 44 g., 123 g and 142 g but the time for all five blocks to fall was about the same. It took between 1.5 and 1.8 seconds for them to fall.

b)

No, mass does not affect how quickly an object falls.

c)

Since the blocks had different masses but took about the same time, I know that mass does not affect how quickly something falls.

17.

What is the reasoning?

Mass does not affect how quickly an object falls. In our experiment, the blocks had different masses, 20 g., 30 g., 44 g., 123 g and 142 g but the time for all five blocks to fall was about the same. It took between 1.5 and 1.8 seconds for them to fall. Since the blocks had different masses but took about the same time, I know that mass does not affect how quickly something falls.

a)

In our experiment, the blocks had different masses, 20 g., 30 g., 44 g., 123 g and 142 g but the time for all five blocks to fall was about the same. It took between 1.5 and 1.8 seconds for them to fall.

b)

No, mass does not affect how quickly an object falls.

c)

Since the blocks had different masses but took about the same time, I know that mass does not affect how quickly something falls.

18.

Which of the following is a claim from the image?

a)

The American woman won first place at the Olympics

b)

The ribbon around the medal is purple

c)

They are wearing tight ponytails

19.

Which of the following is evidence from the image?

a)

1 American with a gold medal, 2 Russians with bronze and silver

b)

They are three good friends hanging out

c)

They are wearing nice jackets

20.

Is the following sentence an example of a claim or evidence?

Two out of three high school students fail to get enough sleep.

a)

Claim

b)

Evidence

21.

Glass. Glass should be used as a window so people can see into the room as it is transparent and allows light to pass through.

Which of these statement is a Reasoning?

a)

Glass.

b)

It is transparent and allows light to pass through.

c)

Glass should be used as a window so people can see into the room.

22.

Which of the following is NOT a claim?

a)

California is the best state in the USA.

b)

Twinkies taste better than other snack cakes because of their texture, their creamy filling, and their golden appearance.

c)

The school year began on August 18 and will end on June 4

d)

Christmas is the best holiday of the year.

23.

When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?

a)

Dependent

b)

Independent

c)

Control

24.

Which variable is the one being tested?

a)

Dependet

b)

Independent

c)

Control

25.

How many variables can be tested in a controlled experiment?

a)

one

b)

two

c)

three

d)

as many as possible

26.

A test is set up to test which brand of soda creates the biggest foam explosion when adding a Mentos candy. Three different sodas were tested. They measured the height of the foam eruption. What is the dependent variable?

a)

Brand of soda

b)

Number of mentos candies used

c)

Height of foam eruption

d)

Temperature of soda

27.

Things that stay the same throughout the whole experiment are called

a)

controls

b)

dependent variables

c)

independent variables

d)

constants

28.

This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted.

a)

experimental group

b)

control group

c)

data

d)

variables

29.

The vertical axis should be labeled as

a)

X-Axis

b)

Y-Axis

30.

The horizontal axis should be labeled as

a)

X-Axis

b)

Y-Axis

31.

Which variable can you CHANGE or manipulate?

a)

Independent Variable

b)

Dependent Variable

c)

Constant Variable

32.

The X-Axis and Y-Axis should have a scale.

a)

True

b)

False

33.

One step to create a graph is to plot the data points and connect the dots.

a)

True

b)

False

34.

When you construct a graph, it is not necessary to include a title.

a)

True

b)

False

35.

Which items SHOULD be included in a graph? Check all that apply.

a)

Title

b)

Axis Labels

c)

Data

d)

Your Opinion

36.

Put the liquids in order from most dense to least dense?

a)

4, 3, 2, 1

b)

1, 2, 3, 4

c)

3, 4, 2, 1,

d)

4, 3, 1, 2

37.

Which box has a higher density?

a)

A

b)

B

c)

They are the same

38.

What is the formula for density?

a)

density = mass x volume

b)

density = mass / volume

c)

density = mass + volume

d)

density = mass - volume

39.

Frank has a paper clip. It has a mass of 9g and a volume of 3cm³. What is its density?

a)

3 g/cm³

b)

1/3 g/cm³

c)

27 g/cm³

d)

39 g/cm³

40.

A piece of copper has a mass of 89g and a volume of 10 cm3. What would be the density of the copper?

a)

0.89 g/cm3

b)

89 g/cm3

c)

8.9 g/cm3

d)

890 g/cm3

41.

In the picture, the mass of the block is 200 g, the dimensions of the block are 6 cm by 4 cm by 5 cm. What is its density?

a)

1.67g/cm³

b)

13.33 g/cm³

c)

0.60 g/cm³

d)

24000 g/cm³

42.

The amount of water displaced is the same as the volume of the object. What is the VOLUME of the object?

a)

40 mL

b)

65 mL

c)

20 mL

d)

25 mL

43.

An object is is placed into 45 mL of water. The water rises to 48 mL. What is the volume of the object?

a)

3 mL

b)

93mL

c)

8 mL

d)

83 mL

44.

What is the volume of 150 grams of lead if it has a density of 11.3 g/cm³?

a)

13.3 g

b)

13.3 cm³

c)

.075 g

d)

1695 cm³

45.

The density of a material is 2 g/cm³. The volume is 24 cm³ . What is the mass?

a)

12 grams

b)

48 grams

c)

12 g/cm³

d)

48 g/cm³

46.

There are 4 objects listed with their densities. Which of the following will float on water? (SELECT 2)

a)

Object A:

0.7 g/cm3

b)

Object B:

1.2 g/cm3

c)

Object C:

0.25 g/cm3

d)

Object D:

11.4 g/cm3

47.

If an object has a density of 6 g/mL and you put it into water, will it sink or float?

a)

sink

b)

float

48.

What decreases when temperature increases?

a)

mass

b)

volume

c)

density

49.

What happens to particles when temperature increases?

a)

They get further apart.

b)

They get closer together

c)

They stay the same.

50.

What is the measurement of the amount of space an object takes up?

a)

mass

b)

volume

c)

density

51.

What is the measurement of the amount of matter in an object?

a)

mass

b)

volume

c)

density

52.

What happens to an object that is less dense than the liquid it is in?

a)

floats

b)

sinks

53.

The instrument used to measure dimensions of solid objects.

a)

density equation

b)

graduated cylinder

c)

displacement

d)

ruler

54.

Metric unit used to record mass.

a)

cm³

b)

grams (g)

c)

miliLiter

d)

liter (L)

55.

How much liquid is represented?

a)

24 mL

b)

20.4 mL

c)

29 mL

d)

35 mL

56.

What is the density of water?

a)

0.1 g/mL

b)

1 g/mL

c)

100 g/mL

d)

10 g/mL

57.

If you doubled the amount of an object or cut it in half, the density of that object would

a)

increase

b)

decrease

c)

remain the same

d)

none of the above

58.

Both variables increase

a)

Direct relationship

b)

Indirect relationship

c)

static relationship

d)

cyclic relationship

59.

One variable increases, while the other decreases

a)

Direct relationship

b)

Indirect relationship

c)

static relationship

d)

cyclic relationship

60.

Each variable increases and decreases

a)

Direct relationship

b)

Indirect relationship

c)

static relationship

d)

cyclic relationship

61.

The independent variable increases, the dependent variable stays the same

a)

Direct relationship

b)

Indirect relationship

c)

Constant or static relationship

d)

cyclic relationship

Science 8 SEP Unit Test Review

Total questions: 61

Worksheet time: 57mins

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