Data – information we collect

Measure – finding the size, amount, distance, or time of something

Trial – one time we test something

Variable – something that can change in an investigation

Pattern – something that happens again and again

Conclusion – what our data tells us

Predict – what we think will happen before we test

We want our test to be fair. That means we should only change ONE thing at a time.

For example, if you're investigating time, keep these the same:

• Same Sphero

• Same starting point

• Same surface

• Same speed

• Same direction

The thing we will change is the amount of time Sphero travels.