Earth Science - Universe

Which is the correct format for writing a hypothesis?

• The “I feel… because… that’s why…” format.

• The “if… then… because…” format.

• The “I think… therefore… I'm right…” format.

• The “if… because… science…” format.

We use __________________ to measure distances of stars/galaxies.

• A ruler. 

• Flying saucers.

• A scale. 

• Light-years.

What is a light-year?

• The birthday of the universe.

• A year that’s not very heavy.

• The distance that light travels in one year. 

• The birthday of the Milky Way. 

Tags

NGSS.MS-ESS1-3

How do scientists know that the universe is expanding?

• Because they just know stuff about the universe.

• Because the Milky Way told them. 

• Because the distance between galaxies is increasing. 

• Because scientists know everything. 

What is a timeline?

• A list of materials you need for an experiment. 

• A list of important events arranged in the order in which they happened.

•  A list of my favorite foods. 

• A grocery list. 

Fill in the blank:

Planning procedures are like ____________________.

Procedures, just like recipes, contain _______________________ and a step by step procedure.

Scientists theorize that the universe started with an explosion called the __________________ _________________.

Tags

NGSS.HS-ESS1-2

A ____________________ is a group of single stars, star systems, star clusters and gas bound together by gravity.

Tags

NGSS.MS-ESS1-2

__________________________ is the force that attracts objects toward each other.

Tags

NGSS.5-PS2-1