1
What has mass and takes up space?
matter
What is the formula for speed?
a. force/location
b. distance/time
c. time/distance
d. mass/force
b. distance/time
Which example best describes a physical change?
a. a marshmallow burning
b. charcoal burning
c. iron rusting
d. an ice cube melting
Which of the following is a learned behavior?
a. crying
b. birds caring for their young
c. intelligence
d. birds flying
c. intelligence
What force wants to slow or stop motion?
friction
Which of the following form a passageway for air to enter the body and for waste gases to exit?
a. heart and blood vessels
b. mouth, esophagus, and stomach
c. nose, throat, and trachea
d. bladder and kidneys
c. nose, throat, and trachea
Which of the following is an acquired trait?
a. height
b. scar on knee
c. eye color
d. freckles
b. scar on knee
Inherited behaviors come from both ________.
parents
Which organ in your body is made up of spongy tissue with lots of surface area to increase contact with the air?
a. nerves
b. intestines
c. kidneys
d. lungs
d. lungs
Which of the following is a chemical change?
a. chopped wood
b. iron rusting
c. torn paper
d. a mixture of salt and water
b. iron rusting
Which best describes the relationship between movement and friction?
a. As the rate of friction increases, the rate of movement increases.
b. As the rate of friction decreases, the rate of movement decreases.
c. As the rate of friction increases, the rate of movement decreases.
d. As the rate of friction decreases, the rate of movement is unchanged.
c. As the rate of friction increases, the rate of movement decreases.
Which of the following run throughout the body and send signals to and from the brain?
a. needles
b. nerves
c. blood cells
d. chloroplasts
b. nerves
a. stomach and intestines
b. brain and spinal cord
c. lungs and trachea
d. heart and blood vessels
b. brain and spinal cord
Which best describes the role friction plays in the operation of a car?
a. Friction helps a car slow down and stop.
b. Friction makes a car go faster.
c. Friction turns the car in a new direction.
d. Friction keeps a car from stopping.
a. Friction helps a car slow down and stop.
When you bump your knee, how do you know you hurt your knee?
a. your knee becomes small than before you bumped it
b. the nerves in your hurt knee send a signal through your body to your brain
c. your knee becomes cold and numb
d. the blood cells in your knee send a signal to your brain
b. the nerves in your hurt knee send a signal through your body to your brain
What is a long bundle of white nerve matter called that is found in the middle of the spinal column?
a. brain
b. nerves
c. spinal cord
d. blood vessels
c. spinal cord
If car one is on a flat, smooth surface and car two is on a gently sloped, smooth surface and the same force is applied to each car, which car will move the farthest?
Car two
What two body systems are involved in your eyes squinting to avoid bright light?
a. circulatory and respiratory
b. circulatory and muscular
c. nervous and muscular
d. nervous and respiratory
c. nervous and muscular
If there is water on the floor and a person slips on the water, what force is there too little of?
a. lifting
b. motion
c. gravity
d. friction
d. friction
Sight, touch, smell, taste, hearing
What sticky substance builds up in your muscles when they need oxygen?
a. sugary syrup
b. lactic acid
c. glue
d. mucus
b. lactic acid
What body system works together to sense the environment, interpret information to decide the best action, and sends signals to the body to react.
The nervous system
Nerves carry ______ throughout the body.
The respiratory system brings in oxygen into the body and removes ____________.
a. nitrogen
b. carbon dioxide
c. hydrogen
d. oxygen
b. carbon dioxide
Motion means to change ___________.
a. matter
b. mass
c. position
d. temperature
c. position