Without me your hopper won’t bounce.when you squash or pull on me,I bounce back into shape.I make thing’s great fun.you can bounce on the trampoline because of me.~~my name is
elasticity.
Without me,everything would be slippery.I stop things from slinging across each other.阻止事物互相滑動(dòng)。tyres grip safety to the roads because of me.my name is Friction.
Without me you will float off into space.my name is gravity.gravity pull everything towards the earth. I even stop rocks and houses from floating away.Without me your hopper won’t bounce.when you squash or pull on me,I bounce back into shape.I make thing’s great fun.you can bounce on the trampoline because of me.~~my name is
elasticity.
Without me,everything would be slippery.I stop things from slinging across each other.阻止事物互相滑動(dòng)。tyres grip safety to the roads because of me.my name is Friction.
Without me you will float off into space.my name is gravity.gravity pull everything towards the earth. I even stop rocks and houses from floating away.
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