7.12b

connects arteries to veins, site of exchange for nutrients, waste and oxygen.

• Capillaries

• Veins

• Arteries

• Valves

liquid portion of blood, typically yellow, where nutrients are dissolved.

• Blood

• Plasma

• Lymph

• Mucus

What is the main organ of the circulatory system?

• small intestine

• bone

• lungs

• heart

Fights disease and infection. Made by the lymphatic system.

• white blood cells

• red blood cells

• circulatory system

• blood

List the steps of the scientific method

d

e

f

c

b

a

Draw conclusions

Communicate results

Form a hypothesis

Conduct experiment

Ask a question

Analyze results

Tags

NGSS.MS-LS1-1

Which letter represents amplitude? (a)  

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS4-1

These blood vessels take oxygenated blood to the body cells.

• heart

• artery

• vein

• capillary

The 3 main functions of the Circulatory System

• break down food, remove waste, make blood cells

• react to stimuli, grow, adapt

• deliver materials, remove waste, and fight infection

Arteries carry oxygen rich blood away from the heart.

• True

• False

The job of the heart is to . . .

• pump blood around the body.

• send food to the small intestines.

• break down food.

• give energy to the body.

Tags

NGSS.MS-LS1-3