Natural Science 4th Grade

thanksgiving conversation

It helps contract and expand the lungs.

TRUE or FALSE. Gas exchange sometimes occurs in capillaries.

Explain the route of oxygen in the body.

_________ is when a sperm joins an ovum.

He/She is the doctor who operates on patients, who is it?

Complete the female reproductive system: Ovaries, ________, vulva, ______,_____, ova

TRUE or FALSE. The heart has four chambers.

Complete the parts of male Reproductive system: _______, _______, scotum, sperm, ______

Before the bay is born, it is called a ________.

TRUE OR FALSE: Blood from the lungs to the heart goes into the left atrium and contains oxygen.

When your lungs get much bigger, so your diaphragm moves down, and your rib cage moves up and out. This makes space inside your chest. What is this process called?

TRUE or FALSE. The circulatory system transports carbon dioxide to all cells in the body.

TRUE or FALSE. Veins only carry blood with carbon dioxide.

An _______ is when the cels grow after fertilisation.

It transports air from the mouth into the bronchi.

TRUE or FALSE. The circulatory system contains the heart, blood vessels, and blood.

The _______ are the blood vessels that take the blood to the heart.

Explain the route of carbon dioxide in the body.

thanksgiving conversation

An adult male's lungs can expand to hold ______ of air.

They are the small air scs in the lungs.

Choose which words do not belong to the group: blood, nose and mouth, trachea, lungs, ovum, alveoli, vulva, tissue cells