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Science 8 MID-TERM Review

Total questions: 31

Worksheet time: 16mins

Name
Class
Date
1.
Imaginary lines that circle the earth parallel to the equator are...
a)
longitude lines
b)
meridians
c)
latitude lines
d)
degrees
2.
a)
The map show the lines of longitude.
b)
The map shows the lines of latitude.
3.
Which letter would you find at 15oS, 60oW?
a)
A
b)
C
c)
L
d)
H
4.

What water cycle process causes what is seen in this image?

a)
condensation
b)
precipitation
c)
evaporation
5.
What is it called when plants give off water vapor as a waste product?
a)
condensation
b)
evaporation
c)
sublimation
d)
transpiration
6.

What is the energy source that drives the water cycle?

a)

The moon T

b)

The heat from our home in the winter all around the world

c)

The sun

d)

he heat generated solely from the core of the earth

7.

The movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat. ____________________

a)

Evaporation

b)

Convection

c)

Precipitation

d)

Transpiration

8.

A group of friends gather around a fire to stay warm. Which type of energy transfer is this the best example of?

a)

conduction

b)

convection

c)

radiation

9.

The handle of a metal spoon warms up when it is placed in a bowl of hot soup because of ________.

a)

convection

b)

conduction

c)

radiation

10.
The girl does not want to eat her vegetables.
a)
Observation
b)
Inference
11.

What is an observation for this image?

a)

The man is scared.

b)

The man is going to be attacked by the shark.

c)

There is a man in a kayak.

d)

The man is paddling fast.

12.

What is the first step of the scientific method?

a)

Hypothesize

b)

Ask Questions

c)

Test hypothesis

d)

Communicate results

13.

Choose the correct hypothesis for "What effect does studying have on my test grade?"

a)

IF I study for hours, THEN my test grade will be better.

b)

IF I have a good test grade, THEN I will study for hours.

c)

IF I have a good test grade, THEN I will not study for hours.

14.

According to the diagram, which question is being tested?

a)

How does colored light affect plant growth?

b)

How does the amount of fertilizer added to plants affect growth?

c)

How will different amounts of water affect plant growth?

d)

How does the type of soil affect plant growth?

15.

Which of the following is the last step in the scientific method?

a)

Analyze Data and Evidence

b)

Test a Hypothesis

c)

Communicate Results

d)

Ask a Question

16.
What is the name of this graph?
a)
line plot
b)
line graph
c)
bar graph
d)
frequency table
17.

What would make the best title for this graph?

a)

The Best Colors

b)

Colors of Different Candies

c)

Number of Smarties versus Size

d)

Number of Colors in Smarties Candies

18.

What is the temperature at approximately 25 minutes?

a)

~40 degrees Celsius

b)

~50 degrees Celsius

c)

~65 degrees Celsius

d)

~80 degrees Celsius

19.

Energy cannot be created or destroyed, it just changes form. This is the best definition of...

a)

Law of conservation of energy

b)

Kinetic Energy

c)

Potential Energy

d)

Velocity

20.

When is potential energy transformed into kinetic energy?

a)

When an object at rest is lifted to a higher elevation.

b)

When an object at rest remains at rest.

c)

When an object at rest is put into motion.

d)

When an object in motion is stopped and put at rest.

21.

Use the image provided to place the number of 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
22.

Jack has a rock. The rock has a mass of 14 grams and a volume of 2 cubic centimeters. Calculate the density of Jack's rock?

a)

3.5 g/cm3

b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
23.
Why do some substances float on water?
a)

They are warmer than water.

b)

They are cooler than water.

c)

They are more dense than water.

d)

They are less dense than water.

24.

Jack's rock has a density of 7 g/cm3. What is the density of each piece of Jack's rock if he splits it in half?

a)

3.5 g/cm3

b)
7 g/cm3
c)

14 g/cm3

d)

0 g/cm3

25.

Convert 0.067 km to mm

a)

67 mm

b)

670 mm

c)

6700 mm

d)

67000 mm

26.

Donovan Bailey and Maurice Greene tie for the world record for the fastest 50 meter sprint. How many centimeters is this?

a)

500 centimeters

b)

5,000 centimeters

c)

50,000 centimeters

d)

500,000 centimeters

27.

The rock samples in each of the four (4) images is of the same rock type. What variable is being used to classify these rocks samples?

a)

shape

b)

size

c)

density

d)

color

28.

You are testing how the amount you water a plant affects its growth. What would be the INDEPENDENT VARIABLE in this experiment.

a)

They type of pot you put the plants in.

b)

The amount you water each plant.

c)

The amount of sunlight the plants get.

d)

The amount the plant grows.

29.

Why do we use graphs in science?

a)

To record and display data.

b)

To show trends in data.

c)

To predict what will happen if we extend the experiment.

d)

All of these choices are correct.

30.

Scientific Question:  Will Margie fall asleep faster if she listens to music? What is the control variable in this experiment?

a)

The music that Margie is listening to.

b)

The time needed for Margie to fall asleep.

c)

Margie.

31.

What is the DEPENDENT variable (effect) in this experimental question?

"Does eating breakfast improve test scores?"

a)

Eating breakfast or not eating breakfast.

b)

The grade you earned on the test.

c)

What time you get up in the morning.

d)

How tasty your breakfast is.