Our bones and muscles help us move. They are part of our locomotor system.
Bones are hard and rigid. Muscles contract and relax.
Let's practise!
Yesterday, our classmate Quique explained the birth process to us.
Well-done Quique! It was very interesting! You are such an expert!
Joints make the skeleton flexible. Joints help us move.
Our locomotor system is made up of bones, muscles and joints.
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