Exploring Science Concepts

What are the three main states of matter?

• foam

• plasma

• vapor

• solid, liquid, gas

Which state of matter has a definite shape and volume?

• Solid

• Plasma

• Gas

• Liquid

What happens to the particles in a solid when it is heated?

• The particles expand and lose their shape completely.

• The particles become denser and settle closer together.

• The particles move freely without any restriction.

• The particles vibrate more vigorously and may eventually overcome their fixed positions.

What is the process called when a liquid turns into a gas?

• Sublimation

• Evaporation

• Condensation

• Vaporization

Name the system in the human body responsible for breathing.

• Digestive system

• Nervous system

• Circulatory system

• Respiratory system

What is the main function of the circulatory system?

• To provide structural support to the body.

• To digest food and absorb nutrients.

• To facilitate the exchange of gases in the lungs.

• To transport blood and essential substances throughout the body.

Which organ is responsible for pumping blood throughout the body?

• Heart

• Kidneys

• Liver

• Lungs

What are the two main types of blood vessels?

• Capillaries and arteries

• Arteries and veins

• Veins and lymphatics

• Arteries and capillaries

What is the role of the digestive system?

• To provide oxygen to the cells.

• To filter waste from the blood.

• To circulate blood throughout the body.

• The role of the digestive system is to break down food and absorb nutrients.

Which part of the brain controls balance and coordination?

• Cerebrum

• Cerebellum

• Brainstem

• Thalamus