Give an example of a push
pushing a door open / pushing a chair.
Why do car tyres have high friction?
Car tyres have high friction so they can grip the road and not slip.
What is soil made of?
Only sand
Only water
Rock, air, water, and organic matter
Only rocks
What happens when two objects fall?
They fall at the same speed (if there is no air resistance), even if one is heavier.
What happens when opposite magnet poles meet?
Opposite poles attract and pull towards each other.
Which soil is best for plants?
Loam
Rock
Sand
Clay
What is soil erosion?
Soil drying
Soil moving away
Soil growing
Soil turning to rock
What do tree roots do?
Remove soil
Hold soil in place
Dry soil
What does gravity do?
Pulls objects toward the ground
Stops objects from moving
Makes objects float in the air
Pushes objects away from Earth
Why does cutting down trees cause erosion? Trees help because ______ Without trees, ______
Trees help hold the soil with their roots. Without trees, the soil can be moved by wind or water.
Give an example of high friction
car tyres on a road / walking on rough ground
Give an example of a pull
pulling a drawer / pulling a rope
What is a force?
Something that only makes objects move fast
A force only happens when objects stop
A push or pull on an object
A type of energy only found in magnets
Which is the best example of friction?
A book sliding and slowing down on a table
A ball flying through the air
A magnet pulling metal
A person standing still
What happens when the same poles meet?
The same poles repel and push away from each other.
How can humans cause erosion? Humans cause erosion by ______ For example, ______
Humans cause erosion by cutting trees or building. For example, when trees are cut down, the soil can move easily.
How many main types of rocks are there?
2
1
3
Which soil is BEST for plants?
Loamy
Silt
Clay
Rock
Give an example of low friction
sliding on ice / a slide in a playground.