Science end of unit (Space Unit) Flashcards
The number of hours of daylight that a location receives varies depending on how far north or south it is from the?
Equator
When it is summer in The United States?
The Northern Hemisphere is tilted towards the sun
The rotation of the Earth causes?
Day & Night
When it is summer in the Southern Hemisphere, it is _______ in the Northern Hemisphere
Winter
The moon and the Sun each exert a gravitational pull on the Earth, and this pull has a major impact on the Earth’s?
Ocean Tides
The alignment of the Sun, Earth and Moon can produce shadows on the Earth or Moon resulting in?
Lunar and Solar eclipses
The Earth’s north-south axis is tilted at _________ degrees.
23.5 degree angle
Which best explains why the moon has phases?
The moon’s position changes in relation to the sun and earth
Which of the following best explains why the Sun appears to move across the sky every day?
The earth rotates on its axis
When the people on Earth cannot see a moon, which phase is the moon in?
New moon
What type of tides occur when the Earth, Sun and Moon are aligned?
Spring Tides
Earth has seasons because?
its axis is tilted as it moves around the sun.
The time when the sun is directly above the equator, and daylight hours are equal to nighttime hours is called a(n):
Equinox
When the lit side of moon appears to get bigger, we say the moon is?
Waxing
The major gravitational force in the Solar System is
The sun
The major gravitational force in the Solar System is:
The sun
Which of the following are reasons Earth sustains life?
All of the above:
-liquid water
-A breathable atmosphere
-suitable amount of sunlight
How many stars are in our solar system?
One (The SUN)
The ______________ is a layer of air, made of gases, that surrounds the Earth and protects humans from the sun’s radiation.
The _ATMOSPHERE_____________ is a layer of air, made of gases, that surrounds the Earth and protects humans from the sun’s radiation.
Which telescope has allowed scientists to learn more about planet Earth over the last 30 years ?
The HUBBLE
Which property makes Earth unique compared to other planets in the solar system?
It has liquid water
A comet is?
A small body of ice,rock,and comic dust
A meteoroid is a _______, __________ body that travels through space.
A meteoroid is a __SMALL_____, __ROCKY________ body that travels through space.
A _______ is a machine that uses escaping gas to move.
A _ROCKET______ is a machine that uses escaping gas to move.
A ________ is an instrument that is used to make distant objects appear brighter and larger
A _TELESCOPE_______ is an instrument that is used to make distant objects appear brighter and larger
A _______ is a large collection of stars, gas, and dust held together by gravity
A __GALAXY _____ is a large collection of stars, gas, and dust held together by gravity
Which of the following allows the planets to stay in orbit ?
The Suns Gravity
Kira notices that the plants in the school garden are green and growing in July, but are brown in December. Why would most plants grow more in summer than in winter ?
The Northern half of the earth is facing the sun during the summer time
Which celestial object is a natural satellite of Earth ?
THE MOON
Which phase follows a waning crescent?
Note: waning= darker
NEW MOON
Which position must the moon be in to produce a solar eclipse?
Between the Sun and earth
How long does it take the earth to make one complete revolution around the sun?
365.25 day
