1. Early History of Space Exploration
Chapter 19 Lesson 2
Week of August 27-31, 2018

2. Science Objective
Standard: 6.2: Construct models and use simulations to explain the role of gravity in affecting the motions of celestial bodies within galaxies and the solar system.
Rockets and Spaceflight (Students will create a model rocket)
Space Probes
Human space Exploration (Students will model weightlessness)

3. Think About It 1. Humans have walked on the moon.
Agree
Disagree
2. Some orthodontic braces were developed using space technology.

4. Lesson Focus
How are rockets and artificial satellites used?
Why do scientists send both crewed and unscrewed missions into space?
What are some ways that people use space technology to improve life on Earth?

5. Vocabulary (define each word in science journal)
Rocket
Satellite
Space probe
Lunar
Project Apollo
Space shuttle

6. Questions: “As You Read” (Jot in science journal)
How is the force of Earth’s gravity overcome when an object is launched into space?
Why do rocket engines in space have to carry their own oxygen?
Where in the United States are rockets launched?
How is a satellite different from other types of space probes?
Explain why the 1950s marks an important time in the space age.

7. Questions: “As You Read” (Jot in science journal)
Describe some purposes for Earth’s orbiting satellites.
What does GPS stand for, and what is it?
What is a flyby probe?
Who was the first person to walk on the Moon? When did this occur?
What is the International Space Station?

8. Jot Notes-1
A rocket moves by burning fuel and ejecting the exhaust from one end.
The mission that sent people to the Moon was Project Apollo.
Rockets are used to launch satellites.
The launch of Sputnik 1 marked the first time humans sent and object into Earth’s orbit. The event stimulated competition between the United States and the former Soviet Union to explore space.

9. Jot Notes-2
Unscrewed missions do not carry astronauts. They are robotic explorations run from Earth. They do not cost as much to build as crewed craft and they can be sent farther away. Crewed missions do involve risk to human life, and therefore, require more rigorous testing and expense.
A balloon is like a rocket because as the air escapes from the open end, the balloon moves in the opposite direction, just as a rocket soars into space as combustion products are released.

10. Jot Notes-3
Timeline: invention of rockets, first artificial satellite, first human in space, first human on the moon
The benefits and drawbacks of international cooperation in space exploration:
Benefits: pooling resources, including money and talent
Drawbacks: disagreement as to how space exploration should be conducted or what should be studied.