Lesson 1
______ velocity is the velocity a rocket must achieve to establish an orbit around Earth.
A spacecraft that has various scientific instruments that can collect data but has no human crew is called a(n) ______ ________.
space probe
Shock-absorbing sneakers are an example of a space _____.
spinoff
An advantage of a space shuttle is that it can be _____.
Which country invented tea?
China
A rocket moves forward when _____ shooting out the back push the rocket in the opposite direction.
gases
A(n) ______ ______ is a large artificial satellite on which people can live and work for long periods.
space station
The space program has spurred development of ______ of products that benefit people on Earth.
thousands
The amount of _____ depends on the mass and speed of the gases propelled out of the rocket.
thrust
Which European nation was said to invent hot dogs?
Germany
The total weight of a multistage rocket is greatly reduced as the rocket _____.
Some probes have small robots called _____ that can move about on the surface of another planet or moon.
rover
Space has a much ____ range of temperatures than Earth.
wider
In 2004, the United States announced a plan to establish a permanent colony on _________.
the moon
Which country is famous for its chocolate and is home to brands like Lindt and Toblerone?
Switzerland
The greater the ______ , the greater the rockets velocity.
thrust
A(n) _____ ______ is a spacecraft that can carry a crew into space, returns to Earth, and then be reused for the same purpose.
space shuttle
_____ space spinoffs include computer-aided imaging techniques.
Medical
A communication satellite is a space _____.
spinoff
Which country produces the most coffee in the world?
Brazil
______ _______ is the velocity a rocket must reach to fly beyond a planet's gravitational pull.
Escape velocity
In 1969, an American spacecraft called the ____ became the first to bring a crew to the surface of the moon.
Eagle
Engineers and _____ have developed a variety of materials for use in spacecraft that are also useful on Earth.
chemists
Because space has almost no air, it is nearly a ______.
vacuum
What is the main ingredient in the Vietnamese soup pho?
Rice noodles