SPF 50
Grab Bag 1
Earth and Moon
Surfs Up
Grab Bag 2
100
The sun is made up a few different elements. Which element makes up more than 70% of the sun?
What is Hydrogen (H)
100
Which scientist used Tycho Brahe's data to determine that planets and moons follow an elliptical path?
Who is Johannes Kepler
100
This is a period of time characterized by a pattern of temperature and other weather trends.
What is a season
100
The difference between the levels of ocean water at high and low tide.
What is tidal range
100
This is when tide levels are higher than average sea level.
What is high tide
200
This is a massive projection of energy released by the sun. It travels outward away from the photosphere.
What is solar flare
200
Define centripetal force
What is a force that makes a body follow a curved path
200
These are changes in the moon's appearance
What are lunar phases
200
Why are tides in different areas throughout the day?
What is because the moon is continuously orbiting around the Earth
200
When the North Pole is pointing away from the sun, what season does Pennsylvania experience?
What is winter
300
What is expelled when a deuterium and a positive atom collide?
What are gamma rays
300
How did gravity help form the sun?
What is extreme friction and pressure led to nuclear fusion
300
The darkest part of a shadow during an eclipse
What is the umbra
300
What sort of tides are happening on Earth when the sun and moon are combining gravitational forces and they form a straight line?
What is a spring tide
300
Which planet has over 60 moons?
What is Jupiter
400
Describe the Sun's rotation
What is Differential rotation. The equator rotates faster than the poles.
400
How far away is Earth from the sun?
What is one AU (astronomical unit)
400
What are two phases of a waxing moon, and how do they appear?
What is waxing crescent and waxing gibbous
400
When the sun and moon form a 90 degree angle, what type of tide do we experience?
What is a neap tide
400
During an equinox, the sun's rays strike the equator at a 90 degree angle. How does this effect daylight and night time hours?
What is They are EQUAL
500
A system of 2 stars that orbit around each other.
What is binary star system or multiple star system
500
Which planet has moons name Phobos and Deimos?
What is Mars
500
This is when the sun shines more directly in one hemisphere than the other. We have two of them per year.
What are soltices
500
How long is a complete tidal cycle?
What is 24 hours and 50 minutes
500
Why does the Earth experience seasons?
What is Earth's axis is tilted 23.5 degrees.
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