Human body Grade 4 Science

Which organs do the ribs protect?

• Brain

• Heart and lungs

• Stomach

• Liver

Which activities does not use muscles?

• Breathing air

• Remembering a name

• Jumping rope

• Digesting the apples

Ella waves good bye from the bus. What pulls on bones to let Ella wave her arm?

• Stomach

• Heart

• Brain

• Muscles

Which system in your body has the job of moving your body?

• The respiratory system

• The nervous system

• The muscular system

• The digestive system

Bones support the body. What pulls and pushes on bones to move them?

• Heart

• Nerves

• Muscles

• Skins

The digestive process starts in the:

• Stomach

• Intestine

• Mouth

• Esophagus

What does the digestive system do?

• Breaks down the food

• Pumps blood throughout the body

• Helps you breath

• Helps your arms and legs