Unit 1

Question 1

Variable

Answer 1

A factor that is changed in an experiment

Question 2

In dependent variable

Answer 2

The variable that is manipulated ( changed on purpose)

Question 3

Dependent variable

Answer 3

The variable that is observed and responds due to the independent variable. The out come or result.

Question 4

Hypothesis

Answer 4

A propose scientific explanation for a set of observations.
Should start with: IF…….Then…..
Must be written in a way that enables it to be tested.

Question 5

Constants

Answer 5

Factors that remain the same, but if they were changed would change the outcome of the investigation.

Question 6

Control

Answer 6

The trial in the investigation that you use to detect change “Normal”

Question 7

Repeated trials

Answer 7

How many times you test each level of the independent variable.
Increase confidence by reducing the effects of random errors or chance.

Question 8

Title of the experiment

Answer 8

States the effect of the independent variable on the dependent variable
Should be written starting with: “ The Effect of……..”

Question 9

Science is

Answer 9

A particular way of knowing about the world.

Question 10

1. ________=The beginning/ Explain
2. ________=The middle/ Explain
3. ________=The end/ Explain
4. ________=Re-start the cycle!/ Explain

Answer 10

1. Observation / hypothesis
2. Investigate / this is the experiment or The scientific method
3. Explain / the conclusion
4. Share / share your findings

Question 11

Evidence

Answer 11

I information that is acquired by observation or experiment.

It can quantitative ( involving measurement or amount) qualitative ( seen or observed)

Question 12

Inference

Answer 12

A logical interpretation based on prior knowledge or experience.
Educated guess

Question 13

A controlled experiment is one in which only ____ _____ is tested at a time.

Answer 13

One variable