How many things can you change in an experiment?

What is the variable you change in an experiment?

What is an observation that describes how many/how large? It involves numbers.

How do you find an average?

What is the average of the following? 10, 12, 15, 20

a graph used to show change over time. Has 2 sets of numbers.

The variable that changes because of the independent variable. The data that you measure.

The most normal group or scenario

graph used to compare groups. Has words and numbers.

variables that stay the same throughout the experiment.

an educated guess

data that differs from all the other data collected in an experiment

Students roll cars down ramps covered w/ different types of paper. They use sand paper, wax paper, and copy paper. They also use the ramp with no paper and measure the time it takes the cars to roll down each ramp. What is the independent variable?

Students roll cars down ramps covered w/ different types of paper. They use sand paper, wax paper, and copy paper. They also use the ramp with no paper and measure the time it takes the cars to roll down each ramp. What is the dependent variable?

Students roll cars down ramps covered w/ different types of paper. They use sand paper, wax paper, and copy paper. They also use the ramp with no paper and measure the time it takes the cars to roll down each ramp. What is a constant variable?

Students roll cars down ramps covered w/ different types of paper. They use sand paper, wax paper, and copy paper. They also use the ramp with no paper and measure the time it takes the cars to roll down each ramp. What is the control group?

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