1
2
3
4
5
100
What type of change creates a new substance?

Chemical change

100

What is the formula for speed?

distance/time

100

The _____ form a passageway for air to enter the body and waste gases to exit the body.

a. heart and blood vessels

b. bladder and kidneys

c. nose, throat, and trachea

d. mouth, esophagus, and stomach

c. nose, throat, and trachea

100

What system includes the brain and spinal cord?

nervous system

100

Motion is a change in ________.

a. energy

b. matter

c. force

d. position

d. position

200

When your eyes squint when a light is too bright, what two systems are involved in this process?

a. circulatory and respiratory

b. nervous and respiratory

c. nervous and muscular

d. circulatory and muscular

c. nervous and muscular

200

A flat, horizontal line on a distance-time graph shows what type of motion?

No motion

200

Friction acts in the ______ direction of a moving object.

opposite

200

Which of the following organs are made of spongy tissue that provide lots of surface area to increase contact with the air?

a. nerves

b. kidneys

c. intestines

d. lungs

d. lungs

200

What force helps mass determine the weight of an object?

gravity

300

A pan balance scale measures ______.

mass

300
The respiratory system brings in ______ into the body and removes _______.

oxygen, carbon dioxide

300
What run through the human body to send signals to and from the brain?


nerves

300

The amount of matter in an object is _____.

mass

300

What is measured by a spring scale?

weight

400

A campfire giving off heat is an example of what type of heat transfer?

radiation

400
Your feet getting hot on the sand at the beach is an example of which type of heat transfer?

conduction

400

Water boiling in a pot is an example of which type of heat transfer?

convection

400

If you hit your knee while you are walking, how do you know that you hurt your knee?

a. Your knee became smaller than it was before

b. The blood cells in your toe sent a signal through your leg to your brain

c. The nerves in your knee sent a signal through your body to your brain

d. Your knee became cold and numb

c. The nerves in your knee sent a signal through your body to your brain

400

Which force is there is less of when you slip and fall on water?

friction

500

A bicycle rusting is a ______ change.

chemical

500

Every force is either a _____ or a  ______.

push/pull

500

Gravity ______ objects toward the center of the earth.

pulls

500

What is the control center of your body?

brain

500

Which systems does the nervous system control?

all