Science 9
Section 11.3 Notes
1
Section 11.3
Exploring Space (Text Pages 412 – 420)
Key Terms:
Rocket
Satellite
Optical Telescope
Probe
Radio telescope
Canadarm 1 and 2
Rover
International Space Station
Section 11.3 Learning Objectives:
 Identify some technologies designed to explore space including:
(i) rockets
(ii) space suits
(iii) Satellites
(iv) Probes
(v) Rovers
(vi) Optical telescopes
(Vii) radio telescopes
 Recognize that Canada plays a major role in space research and exploration.
(I) International Space Station (ii) Canadarm 1 and 2 (iii) Dextre
 Understand that technologies have improved our ability to observe and understand space
 Give examples of Canadian astronauts
(i) Roberta Bondar
(ii) Marc Garneau
(iii) Chris Hadfield
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Complete the following using the text pages 412-420. These will be your notes for this section.
Questions on your quiz and test will be similar!
A. Why do we need rockets?
Rockets provide the incredible amount of force needed to get people and materials into space.
B. Why do astronauts need space suits (be specific)? List three special things that space suits do for
astronauts.
Space suits are needed to keep astronauts from dying when they exit vehicles and go into space.
i.
ii.
iii.
They have communication systems
They control pressure
They regulate temperature
C. What research are Canadians famous for carrying out on the international space station? Why might
this be useful? (Hint, check the picture caption)
Canadians are famous for studying microgravity (low gravity) environments and their effects on
people. This is useful because it helps us understand the effect of prolonged space travel on
astronauts.
Science 9
Section 11.3 Notes
2
D. List the three technologies discussed in the text that Canadians have built for the International
Space Station. Identify the function of each.
i.
Canadarm 1 was developed to manipulate objects in space, particularly space shuttles and
people.
ii.
Canadarm 2 is another robotic arm that essentially put together the international space
station. I also moves supplies and astronauts.
E. What is a satellite? List 4 functions of satellites.
A satellite is a man made object that orbits the earth or another planet to collect information or allow
communication.
i.
ii.
iii.
iv.
Mapping
Monitoring the weather
Communications
Spying
F. How are probes different from satellites? Give one examples of why probes are better than sending
humans to explore our solar system.
Probes are sent into space to gather information about other parts of our solar system and space in
general. They can land, orbit, or fly-by their target objects.
G. What are rovers?
Rovers are robots that can land on a celestial body and move to collect information.
H. What is the difference between optical (refracting or reflecting) and radio telescopes?
Optical telescopes collect and focus light to give the viewer an image of objects in space. Radio
telescopes collect electromagnetic radiation emitted from objects.
I.
What advantage do space telescopes have over earth-based ones?
They do not have to look through the Earth’s atmosphere.