Rocket Into Space: The Launch

Rocket Into Space: The Launch

Rocket Into Space: The Launch
Reading Level

	edHelper's suggested reading level:	grades 5 to 7
	Flesch-Kincaid grade level:	6.95

Vocabulary

challenging words:

liquid-fuel, payload, spacecraft, velocity, orbit, atmosphere, gravity, filmmakers, process, launch, cargo, resistance, shuttle, frequently, satellite, reality

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Rocket Into Space: The Launch
By Trista L. Pollard

¹     Ladies and Gentlemen, begin the launch process!

²     One time in our history, space travel was the dream of writers and filmmakers. Thanks to Robert Goddard's liquid-fuel rocket, space travel is a reality. We now frequently launch rockets, space probes, space shuttles, and satellites into space. Before we talk about different space vehicles, let us look at what it takes to launch into space.

³     Space begins about one hundred miles (160 kilometers) above the upper edge of earth's atmosphere. Rockets need engines that are more powerful than jet engines to launch into space. These powerful engines help the rocket to overcome two strong forces- earth's gravitational pull and air resistance. Goddard proved that rockets with more than one stage could escape earth's atmosphere and journey into space. A stage is a section of the rocket that contains the engine or set of engines and liquid-fuel. The first stage or bottom of the rocket is much larger than the other stages. The first stage needs to contain enough fuel to lift the entire rocket and its payload. The payload or cargo of a rocket may be a satellite with scientific equipment or a space shuttle.

Paragraphs 4 to 5:
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