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Science study guide
Terms in this set (45)
One complete revolution of Earth takes about____________
Earths rotation takes about_________
Day and night are caused by_____
The rotation of Earth
Earth has seasons because_____
How sunlight hits earth
an equinox occurs when_______
Earths equator passes through the center of the sun
The phase of the moon You see depends on
How much the sunlit side of the moon faces earth.
Because the moon rotates once for each revolution around Earth_____
The far side of moon always faces away from Earth
The different shapes of the moon seen from Earth are called ______
During what phase of the moon can a lunar eclipse occur?
For a solar eclipse to occur........
There has to be a new moon.
When are tides the highest?
When sun, moon, and Earth, are aligned.
Tides are caused mainly by....
Difference on how much sun and moon's gravity pull on different parts of Earth.
When do neap tides occur
First quarter moon.
A. objective reasoning
B. Subjective reasoning
A.=Objective reasoning is a fact
B.= Subjective reasoning is an opinion
C.A view or judgment formed about something, not necessarily based on fact or knowledge.
D.= A collection of beliefs or practices mistakenly regarded as being based on scientific method.
Describe a scientific law...
Satement based on repeated experimental observations.
Parallax is used to determine a stars...
A light year is...
A unit of astronomical distance that light travels in on year
What is a giant ball of gases that undergo nuclear fusion.
The milky way is an example of a....
The strength of the force of gravity depends on...
Mass and distance
Which 2 factors did newton concluded combine keeping Earth in Orbit
Inertia and gravity
Gravity helps form stars, planets, and solar systems by the gradual gathering together of smaller pieces in a process called......
What color are the coolest stars?
A star is born when...
Contracting gas and dust from a nebula becomes so dense and hot that nuclear fusion starts, creating a star.
The lifetime of a star depends on it's..
A supernova is the explosion of a dying ________ mass star
Galileo saw that much of the moons surface is covered in pits called...
How large is the moon compared to Earth?
1/4 the size of Earth
What do all the inner planets have in common?
Uranus is different from most planets because it......
Is tilted so far from the sun that it orbits on it's side.
What is so distinctive about Jupiter?
It is the largest planet
Define the heliocentric system.
All planets revolve around the sun.
A. Qualitative observations
B. Quantitative observations
A. Deals with observations
B. Deals with numbers
Explaining or interpreting the things you observe based on reasoning from what you already know is called....
A balance measures...
A line graph shows....
A line graph shows change in data over time.
A possible answer to a scientific question is called....
A variable that does not depend on another
What is effected during an experiment./ relies on another variable.
Observations that deal with descriptions not dealed in numbers are called...
What is the density of pure fresh water
1 Gram c3
Name the planets starting with the sun...
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.
What is the formula for density
What unit of measurement would you use to correctly identify DENSITY?
The sun's layers in order.
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