Chemistry week 1

If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?

• True
• How fast you get to school
• Riding a bike or walking
• False

If you increase the amount of spinach you eat, then you will increase the iron in your blood. 
What's the dependent variable?

• increase the amount of iron in your blood
• spinach you eat

Dependent variable means

• the scientist controls what to test
• educated guess
• ask a question
• what is being measured

What is a factor that the experimenter has full control over and changes to see what happens?

• Dependent Variable
• Independent Variable
• Control group 
• Hypothesis

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

• dependent variable
• independent variable
• data
• control group

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

• Question
• Observation
• Hypothesis
• Experiment

A series of steps used by scientists to solve a problem or answer a question. 

• scientific method
• recipe
• data collection
• metric system

The information you collect while doing your experiment is called

• conclusions

• data

• hypotheses

• procedures

The variable that is being measured or observed is called the _______________. Hint: this is the variable that is the result or effect

• independent variable

• dependent variable

• control variable

Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.

What is the dependent variable?

• Dropping the same way

• Wing Length

• Amount of time it takes the helicopter to hit the floor

• Dropping from the same height