Space Travel
What is the path an object follows around another object in space called?
What is an orbit?
What is the term that explains why astronauts float?
What is microgravity?
Do humans need more, less, or the same amount of oxygen in space?
What is the same amount?
Spacecraft use these systems to keep astronauts alive.
What are life support systems?
What is the path an object follows as it moves through space?
What is a trajectory?
What force pulls objects toward Earth?
What is gravity?
Do humans need more, less, or the same amount of food in space?
What is more?
Without exercise, astronauts lose this type of mass over time.
What is muscle mass?
Humans need clean water, food, water, and this to survive
What is a controlled environment?
Do humans need more, less, or the same amount of water in space?
What is less?
A rocket must overcome these two forces to launch.
What is gravity and drag?
Astronauts need about this percentage of their Earth calories while in space.
What is 125%?
Bones become less dense in space, increasing the risk of this.
What is fracture?
This gas makes up about 78% of Earth’s air.
What is nitrogen?
What scientific process is used to create oxygen and hydrogen by using water and electricity?
What is electrolysis?
This force pushes a rocket upward during launch.
Name one characteristic space food should have.
What is lightweight, long-lasting, or easy to prepare?
In microgravity, body fluids shift toward this part of the body.
What is the head?
Humans add this to the air when they breathe out, adding to humidity.
What is water vapor?
What is the name of the event in the 1970s where the U.S.A and Soviet Union were competing with each other?
What is the Space Race?
According to Newton’s Third Law, why does a rocket move upward when gases are pushed downward out of the engines?
What is "for every action, there is an equal and opposite reaction"?
Why might astronauts need more calories in space?
What is exercise, maintaining muscle/bone mass, body working harder in space, etc?
Why is exercise important for astronauts?
What is to maintain muscle strength and bone density?
What are the two gases produced when water is split during electrolysis in a spacecraft’s oxygen generation system?
What is oxygen and hydrogen?
During the process of the Water Recovery System most of the water goes back to the crew. Where does the rest of go?
What is the Oxygen Generation System?