C2 4.7 Recycling Flashcards Preview

SHHS - Science - C2.4 The Earth - Year 8 > C2 4.7 Recycling > Flashcards

Flashcards in C2 4.7 Recycling Deck (6)
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1

What does recycling mean?

Collecting and processing materials that have been used so that they can be used again

2

Give two advantages of recycling

Resources such as aluminium will last longer; energy is saved because it takes less energy to recycle than to extract resources; waste and pollution is reduced

3

Give a disadvantage of recycling

Separating rubbish is a nuisance; lorries that collect recycling use fuel and create pollution

4

What is an independent variable?

A variable that you can control

5

What is a dependent variable?

A variable that changes when you change something else

6

What is the variable called that must be kept the same throughout an experiment?

Control variable