Earth Basics

Question 1

What was first to appear in the universe?

Answer 1

Light

Question 2

What did Edwin Hubble ask when observing the Andromeda Nebula? What did he conclude?

Answer 2

He asked why it was speeding away. He concluded that the universe was expanding.

Question 3

What were the first two atomic nuclei?

Answer 3

Hydrogen and Helium

Question 4

What are independent, dependent, and control variables

Answer 4

IV-the variable that is manipulated
DV-what is being measured
CV- the variables that stay the same

Question 5

What are the 7 steps of the scientific method?

Answer 5

1-Ask a question
2-Research/collect data
3-Form a hypothesis
4-Experiment/collect data
5-Analyze data
6-Form a conclusion
7-Share

Question 6

Define hypothesis

Answer 6

A testable prediction of what a researcher thinks is true.

Question 7

What is the shape of the earth?

Answer 7

An oblate spheroid

Question 8

Which element makes up the largest percentage of earth’s atmosphere?

Answer 8

Nitrogen

Question 9

What 2 factors determine gravitational attraction?

Answer 9

The mass of the objects and the distance between the objects.