earth, sun, moon
universe
ecosystems
Pictures & Diagrams
surprise
100

When Earth spins on its axis, resulting in day and night. 

What is rotation?

100

The brightness of a star; shown on the y-axis of an HR diagram. 

What is luminosity?

100

Factors such as light, water, temperature, soil, and wind.

What are abiotic factors?

100


What is a stationary front?

100

When an organism is better adapted to be successful and reproduce; survival of the better adapted 

What is natural selection?

200

The result of Earth revolving around the sun every 365 days. 

What are seasons?

200

the force of attraction that governs the motion of our solar system; keeps planets orbiting on circular-type paths versus straight lines.

What is gravity?

200

When organisms need and fight for the same limited resource to survive.

What is competition?

200

the coolest star on this HR diagram

What is C?

200

on a weather map, its shown with a red line with semi-circles.

What is a warm front?

300

The moon phase that occurs 1 week after a first Quarter moon. 

What is a full moon?

300

What temperature values do as you move right on the x-axis of an HR diagram.

What is decrease?

300
The variety of life on earth; increases sustainability.

What is Biodiversity?

300

is eaten by the weasel, fox, and hawk in this food web.

What is the mouse?

300

The type of radiation that can be seen by the human eye; responsible for seeing color. 

What is visible light?

400

The season that occurs when a hemisphere is tilted directly toward the sun.

What is summer?

400

A star that is generally older, dim (low luminosity) and hot (high temperature) on the HR diagram.

What is a white dwarf?

400

organisms that are at the bottom of the food pyramid and make their own energy/food. 

what are producers?

400

a type of star that's hotter and brighter than Red Giants

What are blue giants?

400

The body system that uses the heart to pump blood through blood vessels throughout the body. 

What is the circulatory system?

500

When the lit and growing portion of the moon is more than 1/2.

What is a waxing gibbous?

500

Location on the HR diagram where the hottest and brightest stars are shown.

What is the top, left?

500

What primary consumers eat; another name for "plants" and "producers".

What are autotrophs?

500

the secondary consumer most in danger if the mice in this food web went extinct

What is the hawk?

500

Cells that contain membrane bound organelles, and have a true nucleus. 

what are Eukaryotes?