Free Printable Biology Unit 1 Review

1.

A scientist discovers the body of an unknown species of frog in the rain forest of Brazil. She writes several statements in her journal about the animal shown above. Which of the following is an observation about the frog?

a)

The frog might be poisonous because it is very brightly colored.

b)

It has a mass of 22.4 grams.

c)

The frog is probably a tree climber because it has large, round toe pads.

d)

I think the frog is a species of poison dart frog because of its size and color.

2.

A student placed 50 mealworms in the middle of an aquarium containing a light, a cardboard tube and a water dish. He waited five minutes and then recorded the data for the first trial in the table above. The student repeated this procedure two more times, and recorded the results. Read the results of all three trials. Which inference could you make about mealworms based on the results.

a)

The mealworms probably prefer the darkness of a cardboard tube.

b)

There were 6 mealworms under the light in trial 2.

c)

Mealworms love water.

d)

There were 36 more mealworms in the cardboard tube versus the light in trial 3.

3.

What is observation? A good scientist is observant and notices things in the world. This leads to curiousity!

a)

Information gathered using the 5 senses

b)

A question based on past experience

c)

A prediction

d)

Information that only comes from measurements

4.

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

5.

The girl is folding her arms.

a)

Observation

b)

Inference

6.

It's December.

a)

Observation

b)

Inference

7.

The 2 men are wearing black.

a)

Observation

b)

Inference

8.

They are in a hospital.

a)

Observation

b)

Inference

9.

Which statement is an inference about this picture?

a)

The van is tan.

b)

The van ran into KFC.

c)

The driver was hungry.

d)

The KFC sign is red and white.

10.

What is an observation for this picture?

a)

The man is scared

b)

The man is going to get eaten

c)

There is a man in a kayak

d)

The man is paddling fast

11.

The one factor that a scientist changes during an experiment.

a)

Controlled Variable

b)

Dependent Variable

c)

Independent Variable

12.

The variable that is measured.

a)

Controlled Variable

b)

Dependent Variable

c)

Independent Variable

13.

The factors that stay the same or are constant throughout the experiment.

a)

Controlled Variable

b)

Dependent Variable

c)

Independent Variable

14.

In a controlled experiment, how many independent variables can be tested at a time?

a)

one

b)

none

c)

two or more

d)

how ever many makes sense.

15.

Why is it important to have only one independent variable and to control the other variables when performing science experiments?

a)

So you can tell which factor is causing the change in the experiment.

b)

It does not matter, you can have as many independent variables as you want.

16.

Changes in the _________ variable causes changes in the _________ variable.

a)

independent; dependent

b)

dependent; independent

17.

Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.

What is the independent variable?

a)

Dropping the same way

b)

Wing Length

c)

Amount of time it takes the helicopter to hit the floor

d)

Dropping from the same height

18.

Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.

What is the dependent variable?

a)

Dropping the same way

b)

Wing Length

c)

Amount of time it takes the helicopter to hit the floor

d)

Dropping from the same height

19.

Cindy wanted to find out how the amount of sunlight affects the growth of plants. She placed two tomato plants in 10 inch pots with potting soil and watered them ¼ cup each day. One plant was placed under a cardboard box and one was placed in the sunlight. She measured the growth of the plant each week for three weeks.

What is the dependent variable?

a)

Using the same type of plant

b)

Each plant was placed in a 10 inch pot

c)

The growth of the plant

d)

One plant is in the sunlight and the other is under a box

20.

Cindy wanted to find out how the amount of sunlight affects the growth of plants. She placed two tomato plants in 10 inch pots with potting soil and watered them ¼ cup each day. One plant was placed under a cardboard box and one was placed in the sunlight. She measured the growth of the plant each week for three weeks.

What are two controlled variables? (Select 2)

a)

Using the same type of plant

b)

Each plant was placed in a 10 inch pot

c)

The growth of the plant

d)

One plant is in the sunlight and the other is under a box

21.

Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.

What are two controlled variables? (Select 2 answers)

a)

Dropping the same way

b)

Wing Length

c)

Amount of time it takes the helicopter to hit the floor

d)

Dropping from the same height

22.

A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is

a)

the gender of the alligator

b)

the male alligators

c)

the temperature

d)

the incubator

23.

A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The dependent variable is

a)

the incubator

b)

the temperature

c)

the size of the baby alligators

d)

the gender of the baby alligators

24.

In which step of the scientific method do we want to use graphs?

a)

communicate results

b)

asking questions

c)

analyze data

d)

make a hypothesis

25.

What is the first step in the scientific method?

a)

Make an observation

b)

Design and conduct an experiment

c)

Make an hypothesis

d)

Share your results

26.

This step comes after ask a question

a)

Record your results

b)

Design and perform an experiment

c)

Form an hypothesis

d)

Share your results

27.

A scientific Question needs to be able to be...

a)

Tested

b)

Researched

c)

Read about

d)

Looked up on the internet or in a book

28.

This is a good scientific Question-- "Why do dogs like to play fetch?"

a)

True

b)

False

29.

This is a good scientific question "Does studying for 15 minutes every day increase test scores?"

a)

True

b)

False

30.

Scientific questions have to be...

a)

Measurable

b)

Easy

c)

Interesting

Biology Unit 1 Review

Total questions: 30

Worksheet time: 26mins

Similar Resources on Wayground