6th Grade Sun And Other Stars Chapter 1 Test Flashcards
How is the apparent movement of the constellations similar to the rising and setting of the sun?
The rise in the east and sets in the west like the sun
What is a star constellation?
A pattern or group of stars that people imagined to represent a figure, animal, or object
Describe the difference between a constellation and an asterism.
A constellation is a large group of stars. A asterism is a smaller group of stars.
Understand rotation vs. revolution
Rotation = 24 hours (1 day) spinning on axis Revolution = 1 year (earth traveling around sun). The movement of an object around another object
Be able to describe the Earth’s rotation.
It spins around 365 times in 1 revolution. 1 revolution = 1 day. Planet spins on axis.
Be able to describe the Earth’s revolution around the sun.
The earth’s orbit around the sun about 365 days.
What effect does the Earth’s axis have on our seasons?
The effect the earth’s axis have on our seasons because the earth revolves around the sun.
Describe the differences between an equinox and a solstice.
Equinox=either of the 2 days of the year on which either hemisphere is tilted away from the sun.
Solstice=either of the 2 days of the year on which the sun reaches its greatest distance north or south of the equator
What is gravity, and what influences the force of gravity?
It is the gravitational pull on an object
Be able to describe the terms: Mass, Gravity, and Inertia
Mass: How much something weighs, amount of matter in an object.
Gravity: Gravitational pull on an object
Inertia: The tendency of an object to resist a change in motion.
Be able to describe the phases of our moon:
- New Moon. 2. Waxing Crescent
- First Quarter. 4. Waxing Gibbous
- Full Moon. 6. Waning Gibbous
- Last Quarter. 8. Waning Crescent
Know the difference between a meteor, an asteroid, and a comet.
Meteor: shooting star/falling star streak of light caused by the burning of a meteoroid in the earth’s atmosphere.
Asteroid: One of the rocky objects that resolves around the su.
Comet: A loose collection of ice and dust that orbits the sun. Typically in a long narow orbit.
Describe a solar eclipse and a lunar eclipse
Solar Eclipse: When the moon is blocking the earth from having any Sun
Lunar Eclipse: When the moon is facing away for the sun and we cannot see the moon.
Be familiar with the moon’s features and characteristics
Features: Maria (dark flat area that is formed from huge lava. Crater, Large round pits caused by the impacts, highlands - mountains on the moon.
Characteristics: Moon is 1/4 as big as the Earth. Drastic differences in temperatures between day and night (-170 C). 130 C during the day.
Be able to describe the causes of the Earth’s tides.
Causes: The pull of gravity dictates the………High Tide is when the water is being pulled up from the moon, Low Tide is when the gravitational pull goes down.