Watch this video, it's of an experiment known as a Whoosh Bottle, due to the sound it makes. It involves putting a small amount of alcohol into a large water jug, and then lighting it on fire. There are concepts for Grade 7, 8, and 9 covered in the events that transpire in this video. We'd like you to watch it and think about these questions while doing so:

What kind of reaction is happening in this video?

What is the liquid that forms in the bottle after the 'Whoosh' happens?

What causes the bottle to change its shape the first time?

When the bottle detaches from the hand, what causes the sound?

Why did the bottle change its shape after it separated from the hand?

Challenge Questions

What's the chemical formula for isopropyl alcohol?

What is the chemical formula for the complete reaction we see in the video?

Links to Assignment:

Grade 7 Grade 8 Grade 9

Reading a Graph

Covid-19 has been in the news quite a bit lately, along with that coverage, newspapers, websites, and tv have been showing a lot of graphs with information for the public. Reading a graph is a skill that will help you in your everyday life and in Science and Math. Today we are going to pick apart one of those graphs and learn a bit about how to read them, and certain properties a good graph will have.

We'll go over the first three questions in the assignemnt as a group in our chat today (and you can chat with your classmates in the chats about the others). If you have questions please make sure to ask!

Links to Assignments:

Grade 7 Grade 8 Grade 9

Take two cups, fill up one cup a third of the way full with water. Your challenge is to transfer the water from one cup to the other.

THE RULES

1. The cups must be on a flat, even surface.

2. The cups cannot be touching.

3. You cannot move the cups IN ANY WAY.

4. You cannot move the water by activily picking it up (no sucking it up with a straw for example, but if it moves on it's own though, that's okay).

5. You may use other objects to touch the water, however you cannot pick the water up with these objects.

6. Any object that touches the water must stay in the water and cannot be moved.

7. The water must be transferred within this next week.

Note: You only need to transfer a significant amount, you do not need to transfer it all in that time (aim for about half of the water moving between cups).