Free Printable Term 4 Week 2 Homework Task

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Term 4 Week 2 Homework Task

Total questions: 15

Worksheet time: 18mins

Name

Class

Date

In any experiment, the independent variable ______________.

remains the same to not mess up the experiment

is purposely changed to test the hypothesis

is known by the scientist before doing the experiment

Suppose you are doing an experiment. How can you know that the data is reliable?

perform the experiment one time

the data from the experiment is coming out similar

change the variable

Hypothesis: Does study time affect the student's score on an test?

In your opinion what part of the experiment is being controlled?

The student responses

The time students study

The speed students answer questions

The questions on the test

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

heart rate

type of exercise

amount of exercise

time of day exercise occurs

What step does every scientific experiment begin with?

hypothesis

question/problem

procedures

conclusion

Why do we want to test one variable at a time?

Because it is hard to setup a data table with more

To know what is causing the changes

It is what has always been done

No one really knows

This is the step of the scientific method where you record OBSERVATIONS in a DATA TABLE, and then make a GRAPH.

Hypothesis

Data/Results

Procedure

Conclusion

Which step of the scientific method is in the WRONG place/order?
1. Problem Statement
2. Conclusion
3. Hypothesis
4. Procedure

Problem Statement

Conclusion

Hypothesis

Procedure

A factor in the experiment.

Independent Variable

Dependent Variable

Variable

Control Variable

10.

Variable that the scientist keeps CONSTANT or the SAME.

Control Variable

Variable

Dependent Variable

Independent Variable

11.

How do scientists know that their data is accurate?

Follow their procedure exactly and control all their variables

Compare results with other scientists that tested the same thing and get similar results

Repeat the experiment and get similar results

All of the choices are correct.

12.

What is the control group in this experiment?

The group with the red light

The group with the white light

The group with the blue light

The group with the green light

13.

Suzan usually walks to school. She wants to see if running to school will help her do better on quizzes in first period. (What is her Independent Variable?)

How far she walks

Running to school

Walking to school

How well she does on quizzes

14.

Scientific Question: Will a person fall asleep faster if they listen to music?
What is the dependent variable?

music

time to fall asleep

person

15.

Choose the best-written hypothesis that answers the question:
Question: Why is my room warmer during the day than at night?

Sunlight is making my room warmer.

Mr. Rivas has the heat turned on in the morning.

If I close my blinds during the day, then my room will be cooler because sunlight cant get in.

Sunlight actually cools down a room.

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Term 4 Week 2 Homework Task

Total questions: 15

Worksheet time: 18mins

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