1.1 Sky From Earth
A natural or artificial body that orbits a planet
Satellite
What is the imaginary line that passes through the Earth's poles?
Axis
Who discovered gravity?
Isaac Newton
What are the two types of eclipses?
Lunar and Solar
What are tides?
The rise and fall of ocean water that occurs every 12 hours
What is the difference between a comet and a meteor?
Comet: Cold bodies of ice and dust that develop a glowing tail when near the Sun
Meteor: Streaks of light when a small object burns up entering Earth’s atmosphere
What is the difference between rotation and revolution of the Earth?
Rotation: Earth spinning on its axis (1 day = 24 hours)
Revolution: Earth’s orbit around the Sun (1 year = 365 days)
What happens to gravity if the distance between two objects increases?
Gravity decreases
How long is one day on the Moon?
24 hours. It’s equal to 1 day on Earth.
How many high tides and low tides per day?
2 high tides and 2 low tides per day
Which 5 planets are visible in the night sky without a telescope?
Mercury, Venus, Mars, Jupiter, Saturn
What is the shape of Earth's orbit around the Sun?
Elliptical (oval)
What is the difference between mass and weight?
Mass: amount of matter (does not change)
Weight: Force of gravity + mass (changes with location)
What is umbra?
The very darkest part of moon’s shadow (total eclipse)
What Am I? "The sun and moon pull the water together in a line to produce the highest high tides and the lowest low tides"
Spring Tide
What are satellites used for? (list 3 examples)
GPS, weather, communication
Other acceptable answers: weather forecasting, observation, military/defense information, space science, monitoring, broadcasting, mapping data
Explain the difference between a solstice and an equinox.
Solstice: Longest or shortest day of the year (Summer/Winter)
Equinox: Equal day and night (Spring/Fall)
Why is orbit important?
It keeps the Earth around the Sun, and it also keep the moon around the Earth
What is the difference between the near side and far side of the Moon?
Near Side: the side of the moon that always faces the Earth
Far Side: the side of the moon that always faces away from Earth.
When do Neap Tides occur? (what phase of the moon)
During the 1st and 3rd quarter moons
What are constellations used for? (list 3 examples)
Navigation, farming, storytelling
Other acceptable answers: mythology, calendars/timekeeping. culture, education, art, organization
What causes seasons?
Revolution + tilt = seasons
Recite Newton's First Law of Motion.
An object at rest will stay at rest, an object in motion will stay in motion unless acted upon by an outside force.
(Double Jeopardy) Starting from New Moon, go through all the phases in order.
New Moon 🌑→ Waxing Crescent 🌒 → First Quarter 🌓→ Waxing Gibbous 🌔→ Full Moon 🌕→ Waning Gibbous 🌖→ Third Quarter 🌗→ Waning Crescent 🌘→ New Moon 🌑
Define Spring and Neap Tides in your own words.
Spring Tide: The sun and moon pull the water together in a line to produce the highest high tides and the lowest low tides
Neap Tide: The sun and moon pull the water at right angles to produce the smallest difference between high and low tides.