$0
Motion and Speed
Forces and Newton's Laws
Energy
Waves and Sound
Chemistry
$100
×
$100
×
$100
×
$100
×
$100
×
$200
×
$200
×
$200
×
$200
×
$200
×
$300
×
$300
×
$300
×
$300
×
$300
×
$400
×
$400
×
$400
×
$400
×
$400
×
$500
×
$500
×
$500
×
$500
×
$500
×