1. Can not perform complicated experiments (Wanda)
Can travel farther in space (Wanda)
Cheaper (Kato)
Can stay out in space longer (Wanda)
Do not have to return to Earth (Kato)
Quicker to build (Wanda)
Can not perform complicated experiments (Wanda)

2. People can conduct experiments (Kato)
People can provide information as to how low-gravity affects the body (Owen & Kato)
Tremendous personal experience (Kato)
Muscles and bones weaken in low gravity (Kato)
Require more fuel and cost for supplies (Kato)
Exposure to harmful radiation (Owen)

3. contain a person on board
Manufactured object used to
explore space
Attractive force that pulls two
objects together
Factors: mass & distance
Studies events beyond the
Earth’s atmosphere
Mission that does NOT
contain a person on board
Mission that DOES
contain a person on board
Ball of gas that creates light
and heat

4. Orbits a star
Round
Reflects light
Clears path in its orbit
Weight = mass x gravity
-changes depending on where you are in space
A ratio between the ACTUAL size of an object and its size in a MODEL
(Actual / Scale)
Collection of billions of stars
and their solar systems
Gathering information about an
object without seeing it or
touching it
Manufactured object placed in orbit around Earth
-collects data

5. 150,000,000 Earth Sun Orbit planets Man-made objects
Piece of equipment that
allows you to see objects
in space closer up and in
more detail
150,000,000
Earth
Sun
Piece of rock that orbits
the Sun
Orbit planets
Does not have enough mass
to clear an area around it
Man-made objects

6. Mercury, Venus, Earth, Mars
Jupiter, Saturn, Uranus ,Neptune
Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, Jupiter

7. No atmosphere  no weather, No moon
Revolves the fastest
No moon
Hottest Planet
Has oxygen in atmosphere, 1 Moon
Sustains life
Can be seen without a telescope
2 moons
The “Red” planet
Red spot  Giant Storm, Has rings
60+ moons, Largest planet
31+ moons
Has the most rings
27+ moons
Has rings
Longest year
13+ moons

8. The sun is a star. The center Hydrogen & Helium
Planets, comets, asteroids, dwarf planets
Average size, average temperature
NUCLEAR FUSION!
2 Hydrogen atoms get stuck together and make Helium
H + H  He + Light + Heat
Hydrogen & Helium

9. Measure height of land formations Measure temperature Take pictures
Track weather
Test for composition
Galileo
Allowed us to see space objects closer and in more detail.
Uranus and Neptune cannot be seen without a telescope.
The Hubble Space Telescope

10. Mass: increase mass = increase gravitational force
Distance: increase distance = decrease gravitational force
Their revolution creates an outward force (centripetal force) that
helps fight against the pull of gravity from the sun.
Satellites need to be launched at the perfect speed
so they can reach the perfect distance away from the Earth. At this distance, the gravitational force between the
satellite and the Earth are equal so the satellite does
not fall back to Earth of get lost in space.

11. On Earth, astronauts have the surface of the planet holding the space craft they are in up. However, in space, there is no ground holding everything up. As a result, they are always “falling” back to Earth. ↑ ↓
The gravitational force between an object and the Sun will decrease as the object moves towards the edge of the solar system.

12. Since the moon has less mass than Earth, you would weigh LESS on the moon.
Your mass does not change when you visit the moon because your body has not changed.
Space stations, space capsules, space shuttle
Satellite, Probe, Lander, Rover, Rockets
GPS, Communication (radio, TV), Data collection,
Tracking weather

13. Perform complex experiments
Study effects of low gravity on body
Personal Experience
Harmful to human body
Weak bones & muscles
Risk of death
Costs more $  supplies
Cannot travel very far in space
Sending a person to space is very risky but we study their bodies to possibly help people in Earth.
Costs less $
Travels farther than people
Stay in space longer
Remote sensing devices
No study on human body
No complex experiments
Can break  no one to fix anything
Although unpiloted missions cannot perform complex experiments, their remote sensing devices can gather information from far way places and for longer periods of time.