How far can a flea jump?

Muscles are attached to bone by

• cartilage

• tendons

• ligaments

Bones are attached to bone by

• cartilage

• tendons

• ligaments

The end of the bone is covered by

• cartilage

• tendons

• ligaments

Which type of joint allows the greatest range of movement?

• hinge

• ball and socket

• pivot

Muscles move _______ by contracting and pulling on the tendons

Muscles are often in pairs, one will ________ when the other relaxes

A pair of muscles that work like this are called ___________ pairs

The point at which something will turn is called the

• pivot

• lever

• force

• moment

scissors, nail clippers, rowing boat oars are all examples of

What type of energy does a squashed spring have?

• spring energy

• kinetic energy

• elastic potential energy

• compressed energy