Scientific Theories
Milky Way
Planets
Comets, Asteroids, Meteors
Gravity and Inertia
100
True or False: Scientific theories are guesses based on a scientist's feelings.
FALSE: scientists don't have feelings!!!
100
Arrange the following from smallest to largest: galaxy, earth, universe, solar system
earth, solar system, galaxy, universe
100
How many planets are there?
8
100
Which is in Earth’s atmosphere, a meteoroid, meteor, or meteorite?
meteor
100
the string
200
What TOOL helps scientists improve their theories?
TECHNOLOGY!
200
Arrange the following from SMALLEST to LARGEST: Stars, planet, moon, galaxy
moon, planet, star, galaxy
200
List the 4 small and rocky planets in order
mercury, venus, earth, mars
200
Which lands on the ground, a meteoroid, meteor, or meteorite?
meteorite
200
As distance from the sun increases, the force of gravity on the planets increases or decreases?
DECREASES! Further away= less gravitational pull
300
What is at the center of the geocentric model?
What is at the center of the heliocentric model?
Earth
Sun
300
Order the following from smallest to largest: milky way galaxy, supercluster, solar system, universe
solar system, milky way galaxy, supercluster, universe
300
List the 4 large and gaseous planets in order
jupiter, saturn, uranus, neptune
300
Which is larger, a meteoroid, asteroid, or meteorite?
asteroid
300
What characteristic affects the speed a planet orbits at?
Mass!
Bigger=slower
Smaller= faster
400
The big bang theory states that our universe is _____________.
expanding
400
What is a galaxy made out of?
stars, dust, and gas
400
List the planets from innermost to outermost in order:
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
400
Which two are in space, meteoroid, meteorite, meteor, or asteroid?
meterOID and asterOID
400
What two factors keep planets in orbit?
gravity and inertia (speed)
too slow= crash into sun
too fast= fly out of orbit
too little gravity = fly out of orbit
too much gravity= crash into sun
500
If the universe was represented by an expanding round balloon, where would the OLDEST objects be on the balloon?
at the EDGE
500
Where is our solar system located in the milky way?
in between the center and outer edge of the galaxy
500
Mars’s atmosphere is 96% carbon dioxide and 0.14% oxygen. If we wanted to support human life on Mars, how would these numbers need to change?
increase oxygen to more than 96% and decrease carbon dioxide to less than 1%
500
A comet's tail points towards or away from the sun?
away from the sun
500
Without the sun’s gravitational force, what would happen to the planets?
the planets would fly out of orbit