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100

What contains fluid and red blood cells that carry oxygen, nutrients, and waste?

Blood

100

Your lungs take in oxygen and expel _______.

carbon dioxide

100
Anything that has mass and takes up space is ______.

matter

100

What is made up of a group of cells working together to perform a function?

tissue

100

What does the heart do all day?

pumps blood

200

Which system carries oxygen from the lungs to other cells in the body and removes carbon dioxide?

Circulatory system

200

What two things are responsible for weight?

mass and gravity

200
Heat energy flows from ______ to ______.

hot to cold

warm to cool

200

Which two systems work together to take in oxygen and release carbon dioxide?

a. muscular and circulatory

b. circulatory and digestive

c. respiratory and circulatory

d. skeletal and respiratory

c. respiratory and circulatory

200

What are the five physical properties of matter?

color, texture, taste, smell, and sound

300
Where does the circulatory system collect oxygen from so it can carry it to other cells in the body?

The lungs

300

Which of the following statements are true about objects on Earth?

a. Objects with more mass weigh less

b. Objects with less mass weight more

c. Objects with more mass weigh more

d. The mass and weight of an object are not related

c. Objects with more mass weigh more

300

When does heat energy flow stop?

When the objects reach the same temperature

300
What are the major organs of the circulatory system?


Heart, blood, and blood vessels

300

Which of the following would be a good conductor?

a. plastic straw

b. rubber spoon

c. metal fork

d. wooden spoon

c. metal fork

400

Which organ helps multi-celled organisms obtain oxygen from the environment?

lungs

400

If an object goes into outer space, which of the following properties of that object will change?

a. mass

b. weight

c. density

d. volume

b. weight

400

Which of the following would NOT be a good insulator for a hot fork?

a. rubber

b. cloth

c. aluminum

d. wood

c. aluminum

400

What is the main part of the respiratory system?

lungs

400

What are the three states of matter?

solid, liquid, and gas

500

What three things does the blood carry in the body?

a. oxygen, sweat, and helium

b. oxygen, nutrients, and waste

c. nutrients, hair, and signals

d. nutrients, waste, and signals

b. oxygen, nutrients, and waste

500

If a person weighs 80 kg on Earth, how much will the person weigh in outer space?

0 kg

500
Name the structural organization of organisms from simplest to most complex.

cell, tissues, organs, organ systems, organism

500

Your body breathes in _____ and releases ________.

oxygen/carbon dioxide

500

____ is the amount of matter in an object.

Mass