​Chemistry is at the center of everything.

​Image: OpenStax

​Why does ice float?

Image: OpenStax

Chemistry is the study of matter and its properties.

​Source: BC Science 10 Connections Workbook, p.67

​Write down as many examples of chemical reactions as possible.

Explore

Build+Sketch

1. Stable, neutral hydrogen atom

2. Stable, neutral carbon atom

3. Stable, neutral lithium atom

4. Stable, (+) charged lithium atom

5. Stable, (-) charged lithium atom.

6. Unstable, neutral lithium atom

7. Stable, neutral lithium atom

+Think

1. How much does a proton, neutron and electron weigh?

2. What makes a stable atom unstable?

3. What makes an atom stable?

4. What is an ion?

5. How does an atom's charge change?

6. How many electrons fit in the inner orbit (circle)? Outer orbit?

At home: Notice and write down 5 examples of unnoticed chemical reactions around you.

(Bonus) Write down the chemical equation that represents the reaction.