wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Semester 2 Final Review

Total questions: 38

Worksheet time: 38mins

Name
Class
Date
1.

Climate change is...

a)

A decrease in the temperature of our atmosphere.

b)

An increase in the humidity of our atmosphere.

c)

A decrease in the average wind speed.

d)

An increase in the temperature of our atmosphere.

2.

Select the example below that is a positive effect humans have had on the environment.

a)

Littering plastic bags and soda cans at school.

b)

Cutting down forests for paper.

c)

Recycling metal cans, plastic bottle, and paper products.

d)

Watering your lawn in the middle of a sunny day.

3.

Select the example below that is a negative effect humans have had on the environment.

a)

Packaging food items in plastic.

b)

Replanting trees in a deforested area.

c)

Using solar panels to generate electricity.

d)

Reusing paper for scratch paper

4.

Which sentence best explains why greenhouse gases are good for the Earth in small amounts.

a)

Greenhouse gases keep our Earth warm, but not too warm by keeping the Sun's heat in our atmosphere.

b)

Greenhouse gases keep the Earth warm by keeping the Sun's heat out of our atmosphere.

c)

Greenhouse gases keep our Earth freezing by repelling all the Sun'd heat.

d)

Greenhouse gases keep our Earth warm by keeping all the Sun's heat that is radiated by the surface of the Earth in our atmosphere.

5.

All the following is evidence that support climate change EXCEPT...

a)

The amount of precipitation is decreasing in some areas.

b)

The average temperature on Earth id increasing.

c)

Glaciers (large pieces of floating ice) are becoming larger at the poles.

d)

Storms are becoming stronger and more frequent.

6.

Compare the explanations for the increase in greenhouse gases below and choose the best explanation.

a)

Humans have causes the increase in greenhouse gases by burning more fossil fuels.

b)

Cows have caused the increase in greenhouse gases by releasing large amounts of methane in their farts.

c)

Farmers have caused the increase in greenhouse gases by planting tree around their farms.

d)

Humans have causes the increase in greenhouse gases by recycling glass, paper, and aluminum.

7.

Human activities are contributing to climate change by...

a)

Increasing the amount of oxygen in the atmosphere.

b)

Adding more pollution to the oceans and seas.

c)

Adding to the amount of greenhouse gases in our atmosphere.

d)

Taking away carbon dioxide in our drinking water.

8.

Of all the water on our planet only about ___ is freshwater we can use in rivers and lakes.

a)

50%

b)

18%

c)

1%

d)

97%

9.

Read the following sentence and determine which characteristic of life best fits this example.


A dog is made up of skin cells, brain cells, lung cells, stomach cells, bone cells, muscle cells, and many more types of cells.

a)

Made up of one or more cells.

b)

Grow and develop.

c)

Repsond to environment.

d)

Adapt to environment.

10.

Read the following sentence and determine which characteristic of life best fits this example.


A dog ate its breakfast and than ran around the room.

a)

Made up of one or more cells.

b)

Obtain (gather) and use energy (move).

c)

Grow and develop

d)

Reproduce

11.

Read the following sentence and determine which characteristic of life best fits this example.


The dog grew from a tiny puppy to a big adult dog.

a)

Grow and develop

b)

Reproduce

c)

Respond to environment.

d)

Adapt to environment.

12.

Read the following sentence and determine which characteristic of life best fits this example.


My dog had 12 puppies!

a)

Obtain (gather) and use energy (move).

b)

Grow and develop.

c)

Reproduce

d)

Adapt to environment.

13.

Read the following sentence and determine which characteristic of life best fits this example.


My dog has thick, warm fur because it comes from a very cold place.

a)

Made up of one or more cells.

b)

Reproduce

c)

Respond to environment.

d)

Adapt to environment.

14.

A unicellular organism usually reproduces in what way?

a)

Sexual Reproduction

b)

Asexual Reproduction

c)

Unsexual Reproduction

15.

A multicellular organism reproduces in what way?

a)

Sexual Reproduction

b)

Asexual Reproduction

c)

Unsexual Reproduction

16.

In the cell the nucleus is like the boss. What is the job of the nucleus?

a)

Control what goes in and out of the cell.

b)

Controls everything in the cell and store DNA.

c)

Finishes folding proteins.

17.

In ASEXUAL reproduction how much of the parent's DNA is in the new organism (baby)?

a)

3/4 (75%)

b)

All (100%)

c)

1/2 (50%)

d)

Most (99%)

18.

Why are insects like moths so important to plant pollination?

a)

They move pollen from one plant to another to help plants reproduce sexually.

b)

They cut stems from plants to help the plant reproduce asexually.

c)

They do not do anything that is helpful for the plant.

19.

Birds are important to plant pollination because they...

a)

Eat all the seeds, spit them out, then new plants grow.

b)

Put the seeds in their mouths, fly away, then drop them on the ground.

c)

Eat the seeds, the fly away, then poop out the seeds where the seeds may grow.

d)

Carry seeds to a special pant nursery where the birds gather and tend the seedlings.

20.

When monkeys eat fruit and accidentally spread seeds in their poop this is an example of...

a)

Parasitism

b)

Mutualism

c)

Commensalism

21.

What is DIFFUSION?

a)
b)
c)
d)
22.

What is OSMOSIS?

a)
b)
c)
d)
23.

Your friend secretly sprays perfume 10 feet away. Soon you can smell the perfume because of...

a)

Diffusion

b)

Osmosis

c)

Equilibrium

d)

Concentration

24.

A cell SHRINKS in a ____ solution.

a)

ISOTONIC

b)

HYPERTONIC

c)

HYPOTONIC

d)

NO SOLUTION

25.

A cell SWELLS in a ____ solution.

a)

ISOTONIC

b)

HYPERTONIC

c)

HYPOTONIC

d)

NO SOLUTION

26.

Based on the picture showing water moving OUT of the fish, which of the following must be TRUE?

a)

The FISH is HYPERTONIC and the SOLUTION is HYPOTONIC

b)

The FISH is HYPOTONIC and the SOLUTION is HYPERTONIC

c)

The FISH is ISOTONIC and the SOLUTION is ISOTONIC

d)

Why...

27.

Based on the picture showing water moving INTO the jellyfish, which of the following must be TRUE?

a)

The JELLYFISH is HYPERTONIC and the SOLUTION is HYPOTONIC

b)

The JELLYFISH is HYPOTONIC and the SOLUTION is HYPERTONIC

c)

The JELLYFISH is ISOTONIC and the SOLUTION is ISOTONIC

d)

IDK

28.

Which picture shows an organism in a HYPOTONIC solution?

a)
b)
c)
d)
29.

Which picture shows an organism in a ISOTONIC solution?

a)
b)
c)
d)
30.

What happened to the CELL WALL and the CELL MEMBRANE in these plant cells?

a)

Both the CELL WALL and CELL MEMBRANE shrunk

b)

Only the CELL WALL shrunk, the CELL MEMBRANE stayed the same

c)

The CELL WALL stayed the same, only the CELL MEMBRANE shrunk

d)

Both the CELL WALL and CELL MEMBRANE stayed the same

31.

Which picture shows an organism in a HYPERTONIC solution?

a)
b)
c)
d)
32.

Based on the picture these plant cells were placed in what type of solution?

a)

A HYPOTONIC solution and they ABSORBED water

b)

A HYPERTONIC solution and they ABSORBED water

c)

A HYPOTONIC solution and they LOST water

d)

A HYPERTONIC solution and they LOST water

33.

True/False Read the following sentences and determine if they are true or false.


The earth has had periods fo warming and cooling.

a)

True

b)

False

34.

True/False Read the following sentences and determine if they are true or false.


The water on earth is mostly fresh water.

a)

True

b)

False

35.

True/False Read the following sentences and determine if they are true or false.


A dog is barking at another dog is an example of the dog responding to its environment.

a)

True

b)

False

36.

True/False Read the following sentences and determine if they are true or false.


The type of cells that have a cell wall and chloroplasts is a bacteria cells.

a)

True

b)

False

37.

True/False Read the following sentences and determine if they are true or false.


The type of cell that has small vacuoles and a cell membrane is an animal cell.

a)

True

b)

False

38.

True/False Read the following sentences and determine if they are true or false.


The type of organism that tends to have a shorter lifespan are unicellular organisms.

a)

True

b)

False