Unit 1 Semester Exam Review

You’re interested in how rising sea temperatures impact algae life, so you design an experiment that measures the number of algae in a sample of water taken from a specific ocean site under varying temperatures. What is the independent variable?

• Algae life

• Number of algae in sample

• Ocean temperature

• Specific ocean site

You’re interested in how rising sea temperatures impact algae life, so you design an experiment that measures the number of algae in a sample of water taken from a specific ocean site under varying temperatures. What is the dependent variable?

• Algae life

• Number of algae in the sample

• Ocean temperature

• Specific ocean site

An independent variable is....

• Something that never changes

• What you purposely change

• Something that depends on a change

• Something that remains constant

A dependent variable is....

• Something that never changes

• What you purposely change

• Something that depends on a change

• Something that remains constant

You’re interested in how rising sea temperatures impact algae life, so you design an experiment that measures the number of algae in a sample of water taken from a specific ocean site under varying temperatures. What is a constant?

• Algae life

• Number of algae in the sample

• Ocean temperature

• Specific ocean site

You’re interested in how rising sea temperatures impact algae life, so you design an experiment that measures the number of algae in a sample of water taken from a specific ocean site under varying temperatures. What is a good hypothesis?

• If algae are in a habitat with warmer temperatures, they will survive longer.

• If algae are in different ocean sites, they will survive longer.

• Algae survival depends on the temperature.

• The survival of algae is not dependent on the temperature of water that they are in.

What has been proven- a scientific law or a scientific theory?

• Scientific law

• Scientific theory

Scientific theories answer _________

• Why something happens

• What something is

What would be the best thing to create a model for?

• The orbit of the moon and Earth around the sun

• Dropping a penny and how it exhibits free fall acceleration

• Dominoes falling at a constant speed

• The difference between distance and displacement