Science- Moving and Growing

1. Vertebrates

1.1. Internal skeleton

1.1.1. ribs

1.1.2. skull

1.1.3. vertebrae

1.1.4. pelvis

1.2. REASONS

1.2.1. movement

1.2.1.1. Muscles

1.2.1.1.1. work in pairs

1.2.1.1.2. contract

1.2.1.1.3. relax

1.2.2. support

1.2.3. protection

1.3. Bones grow

2. Invertebrates

2.1. no backbone

2.2. bugs

2.3. soft

3. Exercise and rest

3.1. Changes

3.1.1. Heart beat increases

3.1.2. Breathe faster

3.1.3. heat up

3.2. Oxygen to muscles