THIS type of galaxy is disk-shaped and has tightly wound arms.
what is a spiral galaxy?
THIS is the atmosphere's main source of thermal energy.
What is the Sun?

When Earth is position as shown here, the northern hemisphere is experiencing THIS season.
What is summer?
THIS is what hurricanes need to form and to stay strong.
What is warm ocean water?
The HR diagram plots stars based on THESE two characteristics.
what are temperature and luminosity?
THIS type of galaxy is oval shaped and contains older stars.
what is an elliptical galaxy?
THIS is the process in which carbon moves between the atmosphere, geosphere, and hydrosphere.
What is the Carbon Cycle?

When Earth is position as shown here, the southern hemisphere is experiencing THIS season.
What is winter?

THESE two cities recently experienced a cold front.
What is Minneapolis and Atlanta.
THESE stars are stable and located on a diagonal belt of the HR diagram.
What are main sequence stars?
THIS type of galaxy has lots of new stars and has no particular shape.
What is an irregular galaxy?
Burning fossil fuels like coal, oil, and natural gas for energy emits THESE.
What are greenhouse gases.
THIS is what causes seasons to occur.
What is the tilt of the Earth's axis.

THESE two cities will have warm weather in their weather forecast.
What are Seattle and San Francisco?
This is the color of the hottest stars.
What is blue?
THIS determines the life cycle of a star and what it becomes after it leaves Main Sequence.
What is a star's mass?
THESE can block the movement of air and moisture, creating different climates on either side.
What are landforms (or mountains)?

When the moon is in either of the positions shown here, Earth will experience THESE types of tides.
What are Neap Tides?

THESE two cities will likely have rain in their weather forecast.
What are Boston and New York?

Between stars X,Y, and Z, THIS star is the dimmest.
What is star X?
THIS is the location of our Sun in the spiral galaxy called the Milky.
What is on an arm?
THIS is how a plant contributes to the Carbon Cycle.
What is absorbing carbon dioxide to make sugar?

When the moon is in either of the positions shown here, Earth will experience THESE types of tides.
What are Spring Tides?
THIS is how oceans affect the range of daily temperature changes.
What is ocean water absorbing heat during the day and releasing heat at night?

Between Stars X, Y, and Z, THIS star is the coolest.
What is Star Z?