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Mid-term review 2024-2025

Total questions: 88

Worksheet time: 2hrs 57mins

Name
Class
Date
1.
The independent variable is the ONE thing you _____.
a)
change
b)
keep the same
c)
experiment with
d)
investigate
2.
How many variables can be tested in a controlled experiment?
a)
one
b)
two
c)
three
d)
as many as possible
3.

Mr. G normally uses praise as a reward to train his dog. He wants to know the best way to train his dog, so he sets up an experiment to find out if there is a better way to get his dog to respond to commands. What is his dependent variable?

a)

Type of reward

b)

Praise

c)

Type of dog

d)

Amount of time the dog follows commands

4.

Mrs. Register sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the constant.

a)

distance traveled by the ball

b)

height of the ramp

c)

mass of the ball

d)

weight of the ball

5.

What is the dependent variable (effect) is this experiment?

"Does eating breakfast improve test score?"

a)

eating breakfast or not

b)

the grade you got on the test

c)

what time you get up in the morning

d)

how tasty the breakfast is

6.

What is the independent variable (cause) is this experiment?

"Which type of medium (soil or sand) is best for plant growth?"

a)

height of plant (cm)

b)

type of medium (soil or sand)

c)

amount of medium (soil or sand)

d)

types of plant

7.

What is the dependent variable (effect) in this experiment?

"Do tall people jump further than short people?"

a)

height of the person

b)

weight of the person

c)

how fast the person runs

d)

how far the person jumps

8.

What is the independent variable (cause) in this experiment?

"Which type of metal, copper or aluminum, conducts heat faster?"

a)

size of metal

b)

types of metal

c)

time it takes to heat up

d)

shape of the metal

9.

Which variable is NOT a constant in this experiment?

"Is Bounty paper towels more absorbent than Sparkle paper towels?

a)

the size of paper towel

b)

the amount of water for the paper towel to absorb

c)

amount of water the paper towel absorbed

d)

the shape of paper towel

10.

What is the independent variable (cause) in this experiment?

"Will fish school or group together more if a predator is present?"

a)

whether there is a predator or not

b)

number of fish school together

c)

type of predator

d)

type of fish

11.

Janet wants to see whether drinking coffee will improve productivity. What is the independent variable in this experiment (cause)?

a)

increase productivity

b)

Having coffee or not

c)

the brand of coffee

d)

the time drinking the coffee

12.

Matias wanted to see if his dog would lose weight if he took the dog for a walk twice a day instead of just once a day. What is the dependent variable in this situation?

a)

The breed of dog

b)

The dog's weight

c)

How many times they go for a walk each day

d)

How fast they walked

13.

A factor or condition that is changed on purpose is called the

a)

control variable

b)

dependent variable

c)

independent variable

14.

A factor or condition that is tested or measured is called the

a)

control variable

b)

dependent variable

c)

independent variable

15.

A factor or condition that is kept the same is called the

a)

control variable

b)

dependent variable

c)

independent variable

16.

Using any of your 5 senses to describe the world around you.

a)

Observation

b)

Inference

c)

Prediction

d)

Logical Theory

17.

Which of these is an observation?

a)

The dog is 4 years old.

b)

The dog is wearing a hat.

18.
What is an inference? 
a)
Just a random guess
b)
A prediction or logical conclusions about our observations
c)
The same as an observation
d)
deciding if an observation is qualitative or quantitative
19.

Choose 2 inferences about this picture.

a)

Today is the dog's birthday.

b)

There is a candle on the cake.

c)

The dog has a tag on the collar.

d)

The dog will eat the cake.

20.

I use rulers, scales and calculators to make these observations.

a)

Qualitative data

b)

Quantitative data

21.

The mass of the chocolate cake is 250 g.

a)

Qualitative

b)

Quantitative

22.

There were 17 boys and 12 girls on the yellow school bus.

a)

Quantitative

b)

Qualitative

c)

Both

d)

Neither

23.

What are observations made using our five senses called?

a)

Qualitative data

b)

Quantitative data

24.
What tool do scientists use to measure volume of a liquid?
a)
graduated cylinder
b)
meter stick
c)
spring scale
d)
triple-beam balance
25.
What do we use a meter stick to measure?
a)
volume
b)
distance/length
c)
mass
d)
weight
26.
Tom put water in a graduated cylinder and looked at the lowest point of the meniscus.  What unit should he use?
a)
meter
b)
kilometer
c)
liter
d)
milliliter
27.
Jamal put a block of wood on a triple-beam balance and read the amount in grams.  What was he measuring?
a)
temperature
b)
mass
c)
weight
d)
volume
28.
Cori took a ruler and measured the length x width x height of a block of wood.  What measurement was she getting?
a)
weight
b)
mass
c)
volume
d)
length
29.
William measured the distance from the door knob to the floor and got 1 meter.  What tool did he use?
a)
meter stick
b)
thermometer
c)
graduated cylinder
d)
electronic scale
30.

Roni measured the weight of her agenda. The unit she used was ____________.

a)

liter

b)

meter

c)

gram

d)

Newton

31.

Cassie measured the diameter of a quarter. What unit did she use?

a)

meter

b)

kilometer

c)

millimeter

d)

centimeter

32.
Samantha got the volume of a block of wood.  Each side was 5 ___.  The volume was 125 ______.  What units did she use?
a)
cm, cm3
b)
meter, cm3
c)
gram, cg3
d)
mL, mL3
33.
Celia needed to get the mass of a beaker of sugar.  What tool should she use?
a)
electronic scale, triple-beam balance
b)
graduated cylinder, beaker
c)
meter stick, meter tape
d)
electronic scale, spring scale
34.
Mrs. Mathers ran from Jones to McDonald's.  She wanted to know how far she ran.  The units she would use would be _________.
a)
centimeters
b)
millimeters
c)
kilometers
d)
miles
35.

Sheri put some water in a graduated cylinder and then looked at it at eye level at the meniscus and saw it was 25 mL. What measurement did she get?

a)

mass

b)

volume

c)

weight

d)

length, distance

36.

The variable that I change, like adding fertilizer to a plant, is what variable?

a)

independent variable

b)

dependent variable

c)

constant

d)

control

37.

Which form of matter has a definite shape and takes up space (has definite volume)?

a)

liquid

b)

solid

c)

gas

d)

clay

38.
Which form of matter take the shape of a container like this juice?
a)
liquid
b)
solid
c)
glass
d)
gas
39.
Which form of matter fills the space like it has in the balloon?
a)
liquid
b)
string
c)
solid
d)
gas
40.
The milk in the glass has volume and takes the shape of its container. Therefore, it is assumed that milk is a ______________.
a)
solid
b)
liquid
c)
gas
d)
plasma
41.
The molecules in the picture are tightly held together with little movement. They have shape and energy.  Therefore, the picture represents _________.
a)
solid
b)
liquid
c)
gas
d)
plasma
42.
Molecules move quickest in which state of matter
a)
solid
b)
liquid
c)
gas
d)
solid, liquid and gas
43.
When the temperature of matter decreases the particles ...
a)
speed up and move farther apart
b)
speed up and move closer together
c)
slow down and move farther apart
d)
slow down and move closer together
44.
When the temperature of matter increases the particles...
a)
speed up and move closer
b)
speed up and move farther apart
c)
slow down and move closer together
d)
slow down and move farther apart
45.
Water can be a solid, liquid, and a gas.
a)
True
b)
False
liquid
46.
Molecules are closest together in a 
a)
Solid
b)
Liquid
c)
Gas
d)
plasma
47.
What does this picture represent? 
a)
solid
b)
liquid 
c)
gas
d)
plasma
48.
Which of the following statements is NOT true of all different types of matter?
a)
They are made of atoms and molecules
b)
The particles are always in motion
c)
The particles always move at the same speed
d)
They are made of particles that are too small to see
49.
Which letter shows a liquid?
a)
A
b)
C
c)
E
50.
Which letter shows a gas?
a)
A
b)
C
c)
E
51.
Which letter shows melting?
a)
A
b)
B
c)
C
52.
Which letter shows freezing?
a)
A
b)
B
c)
C
53.
Which letter shows boiling/vaporization?
a)
A
b)
B
c)
C
d)
D
54.
Which letter shows melting?
a)
A
b)
B
c)
C
55.
Which letter shows condensation?
a)
A
b)
B
c)
C
d)
D
56.
What temperature is the condensation point?
a)
40
b)
100
c)
140
d)
180
57.
What is freezing?
a)
solid to liquid
b)
liquid to solid
c)
liquid to gas
d)
gas to liquid
58.
What is melting?
a)
Liquid --> solid
b)
Solid --> liquid
c)
Liquid --> gas
d)
Gas --> liquid
59.
What is condensation?
a)
Liquid --> solid
b)
Solid --> liquid
c)
Liquid --> gas
d)
Gas --> liquid
60.
What is boiling?
a)
Liquid --> solid
b)
Solid --> liquid
c)
Liquid --> gas
d)
Gas --> liquid
61.

Heat always moves from a cooler place to a warmer place.

a)

false

b)

true

62.

___________________ is the transfer of energy by electromagnetic waves.

a)

Conduction

b)

Radiation

c)

Convection

63.

Which of the following is not a method of heat transfer?

a)

Conduction

b)

Radiation

c)

Insulation

64.

Which is the best surface for reflecting heat radiation?

a)

Dull Black

b)

Shiny White

c)

Dull White

d)

Shiny Black

65.

How does heat energy reach the Earth from the Sun?

a)

Conduction

b)

Radiation

c)

Convection

66.

Which is the best surface for absorbing heat radiation?

a)

Dull Black

b)

Shiny Black

c)

Dull White

d)

Shiny Whit

67.

During Convection, what happens to the particles in a liquid or a gas when you heat them?

a)

The particles stay close together and become less dense

b)

The particles stay close together and become more dense

c)

The particles spread out and become less dense.

68.

Metals are good conductors.

a)

false

b)

true

69.

Wood is a good insulator.

a)

false

b)

true

70.

When the metal is heated, this ‘sea of electrons’ gain ____________ energy and transfer it throughout the metal.

a)

kinetic

b)

electromagnetic

c)

thermal

71.

Heat is the movement of thermal energy from a substance at a higher temperature to another at a lower temperature.

a)

false

b)

true

72.

___________________ is the transfer of energy by electromagnetic waves.

a)

Conduction

b)

Radiation

c)

Convection

73.

Which of the following is not a method of heat transfer?

a)

Conduction

b)

Radiation

c)

Insulation

74.

Which is the best surface for reflecting heat radiation?

a)

Dull Black

b)

Shiny White

c)

Dull White

d)

Shiny Black

75.

In which of the following are the particles closest together?

a)

Solid

b)

Liquid

c)

Gas

76.

Which is the best surface for absorbing heat radiation?

a)

Dull Black

b)

Shiny Black

c)

Dull White

d)

Shiny Whit

77.

Metals are good conductors.

a)

false

b)

true

78.

Wood is a good insulator.

a)

false

b)

true

79.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
80.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
81.
Which units of measurement are used for volume?
a)
grams
b)
centimeters
c)
grams/milliliter
d)
milliliter
82.
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
83.
Which box is more dense?  
a)
Box A
b)
Box B
c)
cannot be determined
d)
they are the same
84.
In general what is the most dense form of matter?
a)
solid
b)
liquid
c)
gas
d)
plasmas
85.
If the mass of an unknown substance is 5.4 grams and the volume is 2 cm3. What would be its density? (round)
a)
2.7
b)
2.5
c)
2.4
d)
2.2
86.
Find the density of a 2 cm x 2 cm x 2 cm cube with a mass of 64 g.  (Hint: find the volume first!)
a)
6 cm3
b)
12 g/cm3
c)
128 g/cm3
d)
8  g/cm3
87.
What unit do we measure mass in?
a)
grams
b)
liters
c)
meters
d)
degrees
88.
What is the volume of the fish?
a)
18.0 cm3
b)
6.0 cm3 
c)
38.0 cm3

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