What is Space
Outer space is the universe beyond Earth’s atmosphere and between these kinds of bodies (like planets).
What are celestial bodies?
This scientist was the first to use a telescope to look at stars and celestial bodies.
Who is Galileo Galilei?
The formula used to calculate weight using mass and gravity.
What is W = m × g?
Collection of a sun, planets, comets, asteroids, meteors, and space debris
What is a solar system?
The line that marks the altitude where space begins, located about 100 km above Earth.
What is the Kármán line?
Space is a near-perfect vacuum, meaning it is basically this.
What is empty?
The type of animal that became the first animal to orbit Earth in 1957.
What is a dog?
Mass is a measure of how much _________ is in an object.
What is matter?
The amount of plants in our solar system
What is 8?
The layer of Earth’s atmosphere closest to the ground where weather happens.
What is the troposphere?
In outer space, there is no air, so sound waves cannot do this.
What is travel
The two astronauts who were the first men to walk on the Moon in 1969.
Who are Neil Armstrong and Buzz Aldrin?
Weight is a measure of how the force of this acts on mass.
What is gravity?
The closest planet to the Sun in our solar system.
What is Mercury?
The atmospheric layer found above the stratosphere at around 85 km.
What is the mesosphere?
Outer space is nearly empty because matter has been pulled together by this force into planets, moons, and stars.
What is gravity?
The first human-made object to safely land on another celestial body (the Moon) in 1966.
What is Luna 9?
Because gravity is lower on the Moon, an astronaut would weigh _________ there than on Earth
What is less?
Planets that are made mostly of metal and rock.
What are terrestrial planets?
The layer of Earth’s atmosphere that extends as high as about 10,000 km.
What is the exosphere?
A celestial body can be described as an object visible in this place.
What is the sky?
The space station launched into low Earth orbit that has been continuously inhabited since November 2000.
What is the International Space Station (ISS)?
If gravity on Mars is about 40% of Earth’s, a 100 lb person would weigh this much on Mars.
What is 40 lbs?
The significantly larger celestial bodies and they are made mostly from gases.
What are gas giants?
This object orbits Earth in the thermosphere
What is the International Space Station (ISS)?