Investigation 1 –

Which shoes Homer?

• Homer has just been picked for a bowling team
• He has rubber shoes, leather shoes and the plastic shoes.
• He tests each shoe by running 2 metres and then measures how far he slips down the ally.
• He wants to find the shoes which will give him the least amount of slip.

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Investigation 2 –

Bart at the skateboard park

• On the way home from school Bart and Millhouse stop off at the skate park.
• The two of them decide to have a downhilll race on their skate boards over a distance of 10 metres.
• For a challenge, Bart thinks it would be a good idea for both of them to put different numbers of school books on their head’s.
• They get Lisa to time them and calculate their speed.

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Investigation 3 – Lisa skipping science project

• Lisa decides to test how the length of rope will affect the number of skips in 10 minutes.
• She has three different sizes of ropes -1 meter, 2 meters and 3 meters.
• She asks Marge to time her using a stopwatch and she asks Bart to count the number of skips.

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Investigation 4 – Maggie, up, up and away!!!

How many balloons does it take for Maggie to fly away?

• Bart and Maggie are playing with balloons.
• Bart blows each balloon up with 4 puffs of helium.
• He gives them to Maggie one by one and times how long it takes her to start floating off the ground.

Plenary…

Brain storm this….

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You are building a brand new indoor tennis center and want to know which surface would be best for a tennis ball.

Use key words in your answer

1. What is your independent variable?

2. What is your dependent variable?

3. How will you make it a fair test?