Make a concept map, like the one at right, about what you already know about the universe.

• Tips - Here are some tips for creating a concept map:

1. Generate a list of ideas and initial thoughts that come to mind
2. Sort your ideas according to how important they are. Place central ideas near the center and less important ideas toward the outside of the page.
3. Connect your ideas by drawing connecting lines between ideas that have something in common.
4. Elaborate on any of the ideas/thoughts you have written so far by adding new ideas that expand, extend, or add to your initial ideas

Take this kahoot quiz to see what you all know!

1. Watch - Watch the CrashCourse Kids video about the Universe. What questions do you have from the video?
2. Definitions - Whilst watching the video, try to listen out for the definitions of these words and concepts:

-galaxy

-light year

-observable universe

3. Concept map - add concepts from your kahoot and this video to your concept map

4. Checkpoint - get a yellow check from Mr. Rosenberg

1. Think, Pair, Share - Why would anyone want to look at such large or small distances? What would that be good for?
2. Questions - What questions do you have about the Universe that you would like to be answered in this unit? Write down a question on each Post-It note and stick on the whiteboard.

1. Watch the video - what are the key moments?
2. Questions - What questions do you have about the Universe that you would like to be answered in this unit? Write down a question on each Post-It note and stick on the whiteboard.

1. In groups, calculate the numbers you need on the worksheet to the left to figure out where each event should go on the string, assuming the string is 13.8 meters long.
2. Now on your 13.8 meter (1,380cm) piece of string, measure where each event in the history of the Universe goes with a colored pen, using the calculations from your worksheet.
3. Attach a label using paper and tape to the string to represent each of the key events. Write down what happened and how long ago it happened on each label.
4. Discuss these questions as a group, and as a class:
   1. Why does it seem like so much more happens at the end of your timelines? What does that tell you about the Universe?​
   2. Is there truly more happening now? Or do we just think more recent events are more important?
   3. If there is more happening now, why? What might be causing an increase in activity?