End of Term 2 Science Revision Questions 2024

The _______ pumps blood throughout the body.

• Lungs

• Heart

• Brain

• Atria

Answer explanation

The heart

The main organ of the respiratory system is the _______.

• Nose

• Lungs

• Heart

• Alveoli

Answer explanation

Lungs

Blood is carried away from the heart by _______.

• Veins

• Capillaries

• Lymphatic vessels

• Arteries

Answer explanation

Arteries

The _________ is a muscle that helps in breathing.

• Heart

• Diaphragm

• Liver

• Ventricle

Answer explanation

Diaphragm

Which part of the heart receives oxygen-rich blood from the lungs?

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• Left atrium

• Right atrium

• Left ventricle

• Right ventricle

Answer explanation

Left atrium - Receives oxygenated blood from the lungs.

Left Ventricle - Pumps oxygenated blood to the body.

Right Atrium - Receives de- oxygenated blood from the body.

Right Ventricle -Pumps de-oxygenated blood to the lungs.

Which blood vessel carries oxygen-poor blood back to the heart?

• Arteries

• Capillaries

• Veins

• Aorta

Who are the producers in this food web?

• Fox

• Hawk

• • Grasses

• • Owl

Which of the following organisms is an Carnivore?

• Rabbit

• Hawk

• Mouse

• Grasshopper

What are the starting materials in a chemical reaction called?

• Products

• Reactants

• Catalysts

• Solvents

What is formed as a result of a chemical reaction?

• Reactants

• Mixtures

• Compounds

• Products