Seasons and Tides
What causes seasons to occur on Earth?
The Earth's tilt in relation to the sun.
Put the star colors in order from hottest to coldest.
Blue, White, Yellow, Orange, Red
Describe some key features of the inner planets.
Smaller, rocky, denser, closer to the sun, fewer moons.
What is an asteroid?
Big rock made of iron found in the asteroid belt.
What is an Astronomical Unit?
The distance between the Earth and the Sun
Why does the tilt cause seasons?
The tilt causes part of the Earth to either be facing towards or away from the sun during different times of the year. This results in different amounts of heat and light reaching that area depending on how they are tilted.
How does the size of a star impact the stars brightness?
Bigger Stars are brighter
Describe some properties of the outer planets
Larger, gaseous, have rings, have many moons
What are the features of a comet?
Made of ice, frozen gas, rock, and other things. Gives off a tail as it orbits the sun.
When should you use AU as a measurement?
Measuring two objects in the same solar system.
What is a tidal range?
The difference between high tide and low tide.
ex. high tide amount - low tide amount = tidal range
What is the difference between absolute and apparent brightness?
Absolute - How bright a star actually is
Apparent - How bright it appears from Earth
What two factors impact the force of gravity.
size and distance.
What is the difference between a meteoroid, a meteor, and a meteorite?
Meteoroid- Travels through space
Meteor - Burns up in the atmosphere
Meteorite - Hits the ground
What is a light-year?
The distance light travels in one Earth year.
What is a spring tide? Must include the positions of the Earth, Moon, and Sun, as well as whether the tidal range will be greater (further apart) or smaller (closer together)
Earth Moon and Sun are in a straight line and the tidal range is greater.
What is the purpose of the core of a star/the sun?
To generate energy through nuclear fusion.
Explain how distance impacts gravity.
The closer two objects are to one another, the stronger the gravitational pull (and vice versa)
How is mercury different from the other inner planets?
Smaller and has no atmosphere
When should you use the light year as measurement?
When measuring two objects that are not in the same solar system.
What is a neap tide? Must include the positions of the Earth, Moon, and Sun, as well as whether the tidal range will be greater (further apart) or smaller (closer together)
Earth, Moon, and Sun are at a right angle and the tidal range is smaller.
Explain what occurs in the Radiation Zone and Convection Zone of a star.
Radiation - Energy Radiates through this area
Convection - Energy moves through this area by convection currents
Within the solar system, planets orbit the Sun. What causes planets to orbit the Sun rather than the Sun to orbit the planets?
A. The planets have a smaller diameter than the Sun.
B. The Sun has a greater mass than the planets.
C. The Sun is the center of the solar system.
D. The Sun is the center of the universe.
B.
What makes Venus and Mars different from other planets?
Venus - hottest due to greenhouse gases
Mars - Most similar to Earth, red soil
Daily Double!!!! - Teacher will read you the question. Only your team may answer this. Wager how many points.
Place the following objects in order from largest to smallest: Moon, Planet, Star, Solar System, Galaxy, Universe