Astronomy-First Six Weeks

What is a factor that the experimenter has full control over and changes to see what happens?

• Dependent Variable
• Independent Variable
• Control group 
• Hypothesis

What is a factor that changes because of what the experimenter does?

• Dependent Variable
• Independent Variable
• Control Group
• Hypothesis

Nick wanted to see how high an ice cube would float in different temperatures of water. Identify the DEPENDENT variable
-Amount of water
-Height of Ice cube
-Temperature the ice cube was at its highest height
-Temperature of the water
-Size of the ice cube

• Amount of water 
• Height of Ice cube
• Temperature the ice cube was at its highest height 
• Size of the ice cube

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In this graph, what is the independent variable? 

• Population
• Day
• Species 5

Tags

NGSS.MS-LS2-1

In this graph, what is the dependent variable? 

• Walla Walla Island
• Time
• Number of Deer

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-2

First proposed a Heliocentric (sun centered) universe. Also the first to measure the distance from the Earth to the Moon. His ideas went unsupported by astronomers for many years.

• Aristotle
• Aristarchus
• Ptolemy
• Galileo

____________ explained the universe in terms of 'epicycles' where the planets move in circles as they orbit the Earth at the center. He was trying to explain why the planets seemed to 'wander', moving back and forth in the sky. His model was accepted for 1,200 years! He wrote down his star catalog and his ideas of a geocentric universe in a book titled 'Almagest'.

• Aristotle
• Aristarchus
• Ptolemy
• Galileo

Astronomer that took the guesswork out of astronomy and was the first to use experimentation and data in his explanations of the universe. He was also the first to explain why Earth has seasons. 100 years after he died his heliocentric model of the universe was finally accepted. His model incorrectly had the planets orbiting in perfect circles.

• Aristotle
• Galileo
• Copernicus
• Johannes Kepler

Was the best 'naked eye' astronomer to have ever lived, making accurate measurements of the distances of planets and stars with no telescope. However, he wrongly believed in a geocentric (Earth centered) view of the universe. He witnessed a Supernova and knew it was not a local occurrence by using parallax. He is also known for owing a pet elk/moose and losing his nose in a duel over who was the better mathematician. The large lunar crater is named after him. and he built an observatory he called 'Uraniborg' in his castle on an island.

• Tycho Brahe
• Johannes Kepler
• Copernicus
• Ptolemy

He 'popularized' the heliocentric (sun centered) model of the universe 100 years after Copernicus and was the first to point the telescope at the sky. He was put on house arrest for his views of a heliocentric universe where he wrote many books in Italian so everyone could read them. He also discovered the 4 'Galilean' moons of Jupiter, that Venus has phases like the moon, that our moon has mountains and valleys, and he observed sun spots on the sun.

• Galileo
• Aristarchus
• Johannes Kepler
• Tycho Brahe