Transcript Living Things

Chapter 13 Exploring Space
Table of Contents
Chapter Preview
13.1 The Science of Rockets
13.2 The Space Program
13.3 Exploring Space Today
13.4 Using Space Science on Earth
Chapter 13 Exploring Space
Chapter Preview Questions
1. If the forces on an object are balanced, a moving object will
a. speed up.
b. slow down.
c. change direction.
d. continue on its original path.
Chapter 13 Exploring Space
Chapter Preview Questions
1. If the forces on an object are balanced, a moving object will
a. speed up.
b. slow down.
c. change direction.
d. continue on its original path.
Chapter 13 Exploring Space
Chapter Preview Questions
2. Which of the following could NOT happen if the forces on a
moving object are unbalanced?
a. The object will speed up.
b. The object will slow down.
c. The object will change direction.
d. The object will continue on its original path.
Chapter 13 Exploring Space
Chapter Preview Questions
2. Which of the following could NOT happen if the forces on a
moving object are unbalanced?
a. The object will speed up.
b. The object will slow down.
c. The object will change direction.
d. The object will continue on its original path.
Chapter 13 Exploring Space
Chapter Preview Questions
3. What force holds the planets in orbit around the sun?
a. gravity
b. friction
c. magnetic force
d. atomic force
Chapter 13 Exploring Space
Chapter Preview Questions
3. What force holds the planets in orbit around the sun?
a. gravity
b. friction
c. magnetic force
d. atomic force
Chapter 13 Exploring Space
Chapter Preview Questions
4. The force of gravity between two objects depends on the
mass of the objects and the
a. speed at which they are moving.
b. amount of friction between them.
c. distance between them.
d. volume of the object.
Chapter 13 Exploring Space
Chapter Preview Questions
4. The force of gravity between two objects depends on the
mass of the objects and the
a. speed at which they are moving.
b. amount of friction between them.
c. distance between them.
d. volume of the object.
Chapter 13 Exploring Space
How do scientists learn more about the
solar system?
Look at the photo of an astronaut
below. The astronaut and other
objects seem to be floating. Why
do you think astronauts appear to
float when in orbit?
Chapter 13 Exploring Space
High-Use Academic Words
Word
source
Definition
Example Sentence
n. That from which
something comes into
existence
Gasoline is the source of
power for most cars.
Chapter 13 Exploring Space
High-Use Academic Words
Word
consumer
Definition
Example Sentence
n. A person who buys
goods and services for
personal needs
People who buy food,
clothing, and TVs are
consumers.
Chapter 13 Exploring Space
High-Use Academic Words
Word
benefit
Definition
Example Sentence
v. To bring help; aid
Daily exercise benefits
nearly everyone.
Chapter 13 Exploring Space
High-Use Academic Words
Word
technology
Definition
Example Sentence
n. A way of changing the
natural world to meet
human needs
The technology of personal
computers has changed the
way people communicate.
Chapter 13 Exploring Space
Apply It!
From the previous list, choose the word that best completes the sentence.
1. When you buy new clothes, you are a
.
consumer
2. DVD players are an example of a new
technology
3. Medicines
benefit
people who are sick.
.
Chapter 13 Exploring Space
End of Chapter
Preview
Chapter 13 Exploring Space
Section 1:
The Science of
Rockets
How were rockets developed?
How does a rocket work?
What is the main advantage of a multistage rocket?
Chapter 13 Exploring Space
How Do Rockets Work?
A rocket moves forward when gases
shooting out the back of the rocket push it in
the opposite direction.
Chapter 13 Exploring Space
Rocket Altitude
A rocket’s altitude is how high it
is above the ground. Use the
graph to answer the following
questions about how a model
rocket’s altitude changes over
time.
Chapter 13 Exploring Space
Rocket Altitude
Reading Graphs:
What two variables are being
graphed? In what unit is each
measured?
Altitude and time, meters and
seconds
Chapter 13 Exploring Space
Rocket Altitude
Reading Graphs:
What was the rocket’s altitude
after 2 seconds? After 4
seconds?
About 65 meters; about 128
meters
Chapter 13 Exploring Space
Rocket Altitude
Reading Graphs:
At what time did the rocket
reach its greatest altitude?
6 seconds
Chapter 13 Exploring Space
Rocket Altitude
Inferring:
Why do you think the rocket
continued to rise after it ran
out of fuel?
The rocket’s inertia caused
it to continue to rise after its
fuel ran out. Eventually
friction caused the rocket to
slow down and gravity
caused it to fall
Chapter 13 Exploring Space
A Multistage Rocket
A typical multistage rocket has three
stages. Each of the first two stages burns
all of its fuel and then drops off. The next
stage then takes over.
Chapter 13 Exploring Space
Multistage Rocket Activity
Click the Active Art button to open a browser window and
access Active Art about multistage rockets.
Chapter 13 Exploring Space
End of Section:
The Science of
Rockets
Chapter 13 Exploring Space
Section 2:
The Space Program
What was the space race?
What were the major events in human
exploration of the moon?
Chapter 13 Exploring Space
Missions to the Moon
The American effort to land astronauts on the moon was
named the Apollo program.
Chapter 13 Exploring Space
More on Lunar Exploration
Click the PHSchool.com button for an activity
about lunar exploration.
Chapter 13 Exploring Space
The Race for Space
Click the Video button to watch a movie about
the race for space.
Chapter 13 Exploring Space
End of Section:
The Space Program
Chapter 13 Exploring Space
Section 3:
Exploring Space Today
What are the roles of space shuttles and space stations?
What features do space probes have in common?
Chapter 13 Exploring Space
The Space Shuttle
NASA has used space shuttles to
perform many important tasks. These
include taking satellites into orbit,
repairing damaged satellites, and
carrying astronauts and equipment to
and from space stations.
Chapter 13 Exploring Space
Links on Space Exploration
Click the SciLinks button for links on space exploration.
Chapter 13 Exploring Space
End of Section:
Exploring Space Today
Chapter 13 Exploring Space
Section 4:
Using Space Science
on Earth
How are the conditions on space different from those
on Earth?
How has space technology benefited modern society?
What are some uses of satellites orbiting Earth?
Chapter 13 Exploring Space
Space Spinoffs
Many technologies that were developed for the space
program have proved useful on Earth as well.
Chapter 13 Exploring Space
Links on Satellite Technology
Click the SciLinks button for links on satellite technology.
Chapter 13 Exploring Space
End of Section:
Using Space Science
on Earth
Chapter 13 Exploring Space
QuickTake Quiz
Click to start quiz.