1
The respiratory system gives off the which by-product?
a. nitrogen
b. carbon dioxide
c. oxygen
d. hydrogen
b. carbon dioxide
A _______ change is a change in state.
physical
What takes up space and has mass?
matter
Which of the following is a quick chemical change?
a. a nail rusting
b. a match burning
c. water freezing
d. an apple rotting
The smallest blood vessels are called ______.
a. veins
b. arteries
c. blood
d. capillaries
d. capillaries
A salad is an example of a ______ change.
physical
The respiratory system brings ______ into the body and removes carbon dioxide.
oxygen
Suzie takes a trip to outer space. What will her weight be while she is in space?
0 pounds
What is the formula for speed?
distance/time
Which of the following organs form a passageway for air to enter the body and waste gasses to exit the body?
a. nose, throat, and trachea
b. heart and blood vessels
c. mouth, esophagus, and stomach
d. bladder and kidneys
a. nose, throat, and trachea
Which muscle in the respiratory system helps lungs expel air when it relaxes?
a. heart
b. diaphragm
c. biceps
d. hamstrings
b. diaphragm
The major organs of the respiratory system are nose, trachea, ______, and diaphragm.
lungs
Which of the following surfaces will have the greatest amount of friction?
a. ice rink
b. tile floor
c. sandpaper
d. wax paper
c. sandpaper
The trachea, alveoli, and bronchi are all part of what system?
respiratory system
The major organs of the circulatory system are _____, blood vessels, and heart.
blood
Which organ of the respiratory system acts as a filter for the air entering your body?
nose
The function of the respiratory system is to ________.
a. support and protect
b. allow air to enter and waste gases to exit
c. excrete solid and liquid waste
d. digest food for energy and nutrients
b. allow air to enter and waste gases to exit
What produces weight based on the mass of an object?
gravity
True or false. Your body needs oxygen to help release energy from food.
True
Mass and gravity are responsible for ______.
a. volume
b. matter
c. weight
d. density
c. weight
The mass of any object or material is _____ to the ______ of the mass of all its parts.
equal, sum
a. alveoli
b. nose
c. trachea
d. diaphragm
c. trachea
Which system is the transport system for oxygen, nutrients, and waste in the body?
circulatory system
Your respiratory system works with the _____ system to move oxygen throughout your body and remove carbon dioxide.
circulatory
The ______ pumps blood throughout your body.
heart