Grade 8

How many variables should be tested at a time?

• Three
• Zero
• Two
• One

What is the first step in the scientific method?

• Make an observation --> Question
• Design and conduct an experiment
• Make an hypothesis
• Share your results

This variable in an experiment is the one being deliberately changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

Which type of data involves numbers that are obtained by counting or measuring?

• quantitative
• qualitative

Which type of data involves descriptions that cannot be counted or measured?

• qualitative
• quantitative

The summary at the end of an experiment that explains the results is... 

• conclusion
• procedures
• materials
• responding variable

A testable prediction about a scientific investigation is a(n)

• Question
• Observation
• Hypothesis
• Experiment

How can you tell this plant is a living thing?

• It doesn't move.
• It is made up of different parts.
• It responds to a change in its environment.
• It needs shelter.

The following list represents the characteristics of a living thing :

• made of cells, has lungs, can reproduce

• grows and develops, responds to surroundings, can move

• has similar chemicals, makes noises, made of cells

• made of cells, grows and develops, uses energy

Which one of the following is a characteristic of life?

• Growth

• Breathing

• Expelling toxins

• Photosynthesis