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Yr7 Investigating Skills

Total questions: 20

Worksheet time: 32mins

Name
Class
Date
1.

A student wanted to test if temperature impacted the cooking time of a cake. What is the independent variable?

a)

Temperature

b)

Cooking time of cake

c)

Type of cake being made

d)

How much sugar is in the cake

2.

When studying while listening to music, the test score will improve. What is the dependent variable?

a)

whether music was listened to or not

b)

test score

c)

how long the test is

d)

none of the above

3.

If plants are watered, then growth will increase.

What is the dependent variable?

a)

the amount of water given

b)

the growth of the plant

c)

the amount of sunlight

d)

the type of soil

4.

A student wants to test the effects of type of exercise on heart rate. What is the dependent variable?

a)

heart rate

b)

type of exercise

5.
Molly investigated if the age of students caused them to be better drivers. What is the independent variable?
a)
Type of car
b)
Age of student
6.
Mr. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.
a)
Distance traveled by the ball
b)
Height of the ramp
c)
Mass of the ball
7.
A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.
a)
Height that the ball bounces
b)
Height from which the ball is dropped
8.

What would the independent variable be in an experiment testing which type of paper airplane goes the furthest?

a)

the distance each plane flies.

b)

the type of paper airplane.

9.
Mr. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?
a)
Distance traveled by the ball
b)
Mass of the ball
10.
If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?
a)
How fast you get to school
b)
Riding a bike or walking
11.

An investigation found that more potatoes would be produced on a farm if the soil was fertilized more.

What is a controlled variable?

a)

Number of potatoes

b)

Amount of fertilizer

c)

Science

d)

The location of the farm

12.

A study was done to see if different tire treads affect the braking distance of a car.

What is the dependent (or responding) variable?

a)

Tire treads

b)

Braking distance

c)

Road conditions

d)

Model of car

13.

A researcher did an investigation to see if corn seeds would sprout at different times depending on three different water temperatures in which they were placed. What is the independent (also known as the manipulated) variable?

a)

How long to sprout

b)

Type of seed used

c)

Water temperatures

d)

How much water used

14.
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
15.
What is the INDEPENDENT variable (cause) in this experiment?
"Will fish school 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
16.
Bonnie wants to test whether adding Bio-fertilizer 'x' will help plant grow. What is the "controlled group" in this experiment?
a)
plant sprayed with Bio-fertilizer 'x'
b)
plant without the Bio-fertilizer 'x'
17.

Identify the DEPENDENT (responding) VARIABLE: You experiment to see if the type of liquid changes how fast it can drain out of the tornado tube

a)

Amount of liquid

b)

Type of liquid

c)

Technique of swirl

d)

Speed to drain

18.

Identify the INDEPENDENT (manipulated) VARIABLE : You experiment to see if a bouncy ball or a tennis ball bounces higher.

a)

Type of ball

b)

Same drop height

c)

Height of bounce

d)

Same surface

19.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the dependent variable?
a)
Type of plant
b)
Water, apple juice, milk
c)
Plant growth
20.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid

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