the skeleton - grade 4 science lesson

SKULL

vertebra

Science Lesson

SKELETONS

spine

HUMAN AND ANIMALS

bone

Sometimes skeletons look scary. Skeletons are not scary. People, and many animals, have a skeleton inside their bodies. A skeleton is a hard, strong frame that supports our bodies from the inside.

What are skeletons made of?

Skeletons are made of bone. Bone is very hard and strong. You can feel the bones of your skeleton through your skin. Doctors use an X-ray scanner to see our skeletons without having to operate.

3. Now your back, the bumps you can feel are the bones of your spine. These bones are called vertebrae. One bone is called a vertebra. OUR SPINE GIVES US SUPPORT

1. Feel your head. How many skull bones can you feel? THE SKULL PROTECTS OUR BRAIN

Our skeletons are made of many different bones. These bones are different shapes and sizes.

4. Stand up and put your hands on your hips. Can you feel your hip bones? How would you touch your hip without an arm? ARM BONES GIVE US MOVEMENT

2. Hold your hands on the sides of your chest. Can you find your ribs? How many ribs do you feel? RIBS PROTECT OUR LUNGS

Question 1/4

Question

What are skeletons made of?

Bones

Blood

Flesh

Question 2/4

Question

Why must skeletons be hard and strong?

Our skeleton is a machine that supports our bodies from the inside

Our skeleton is a frame that supports our bodies from the inside

Our skeleton is a container that supports our bodies from the inside

Question 3/4

Question

Why do you think the bones of your skeleton are different shapes and sizes?

Each bone grows differently and bends into shape

Each bone serves a function in the frame of our bodies

Each bone forms like jelly in our bodies

Question 4/4

Question

Bones are not very heavy. How do you think this helps animals?

Bones help animals be able to live in different environments

Bones help animals breath

Bones help animals eat

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