REVIEW UNIT 1

What is the main function of red blood cells?

• To carry oxygen

• To fight infections

• To clot blood

• To transport nutrients

Which component of the blood is responsible for clotting?

• Red blood cells

• White blood cells

• Platelets

• Plasma

What type of blood vessel carries blood away from the heart?

• Veins

• Capillaries

• Arteries

• Lymph vessels

Which part of the circulatory system is responsible for pumping blood?

• Veins

• Heart

• Arteries

• Capillaries

What is the term for a volcano that is not currently active but may erupt in the future?

• Ash

• Dormant

• Erupt

• Preserved

What do you call the process when a volcano releases lava, ash, and gases?

• Breeze

• Gust

• Erupt

• Across

What is the term for fine particles ejected from a volcano?

• Ash

• Dormant

• Gust

• Along

What is the term for a sudden, strong burst of wind?

• Breeze

• Gust

• Pyroclastic Surges

• Into

What is the term for moving from one side to the other?

• Along

• Across

• Into

• On

What is the term for moving in the direction of the length of something?

• Across

• Along

• Into

• On