FREE NeSA Science Questions and Answers

Question 1

Which process is primarily responsible for the oxygen in Earth’s atmosphere?

Accepted Answer

Photosynthesis

Answer

Respiration

Answer

Combustion

Answer

Fermentation

Question 2

What is the main function of the roots in a plant?

Accepted Answer

To absorb water and nutrients

Answer

To produce seeds

Answer

To carry out photosynthesis

Answer

To protect the plant from herbivores

Question 3

Which layer of Earth is composed mostly of liquid iron and nickel?

Accepted Answer

Outer core

Answer

Crust

Answer

Mantle

Answer

Inner core

Question 4

What type of energy transformation occurs in a solar panel?

Accepted Answer

Light to electrical

Answer

Chemical to electrical

Answer

Mechanical to electrical

Answer

Thermal to electrical

Question 5

Which of the following best describes the function of the mitochondria in a cell?

Accepted Answer

They generate energy.

Answer

They store genetic information.

Answer

They produce proteins.

Answer

They digest waste materials.