Absorbency What does it mean? Absorbency is… a materials ability to soak up a liquid. What materials do you think are absorbent?

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Presentation transcript:

Absorbency What does it mean?

Absorbency is… a materials ability to soak up a liquid. What materials do you think are absorbent?

Which of these materials are absorbent? Wood Carpet Fabric Rock Paper Metal Sand Glass

If you spilt water on the carpet, what would happen?

When you put a sponge in the bath, what happens? It soaks up the water You can squeeze it back out when you wash with it Is it absorbent?

Can you think of anything absorbent that we use everyday?

Paper Towels What do they need to be? ABSORBENT Why?

How many different kinds of paper towel can you think of? Kitchen RollServietteHand towel Toilet RollTissue?

Which paper towel is the most absorbent? Which will be the best for mopping up a spill?

You are going to investigate the absorbency of paper towels. What will you need to consider? What will you need to change? What will you need to keep the same to make it a fair test?

Paper Towel Investigation Aim We would like to find out which kind of paper towel is the most absorbent. Prediction What will we need? How will we find out? What will I measure or observe? What did I find out?