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## PowerPoint Slideshow about ' Tootsie Pop Chemistry' - patience-best

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Presentation Transcript

Supplies

- Tootsie-Pop (different color for each person in the group)
- Colored pencils
- Colored squares of paper to represent additional pop wrappers
- Arrows and + signs
- Science notebooks

Purpose

Use chemical symbols to represent chemical formulas and equations.

If the flavors of Tootsie-Roll Pops represent different atoms or elements, how many different combinations can your group create?

- In your notebook, draw a picture of each combination. atoms or elements, how many different combinations can your group create?
- Which group can find the most combinations within 3 minutes?

- How many different kinds of atoms are represented by your Tootsie-Roll Pops?
- How many different combinations did your group make?
- Do you think any other group had the same combinations as your group did?
- Were there other combinations your group didn’t think of?

- What might this activity suggest about elements? Tootsie-Roll Pops?

- Draw a picture description of this combination. Tootsie-Roll Pops?
- Now write a description of this combination in words.

Can you think of a better way? Tootsie-Roll Pops?

- Drawing pictures or writing out descriptions is quite tiresome and time-consuming.
- Let’s give each color a symbol.
- You can unwrap your lollipop now!!!

- Grape – G Tootsie-Roll Pops?
- Cherry – Ch
- Chocolate – Cc
- Orange – Or
- Green – Gn
- Raspberry -R

- Make three different combinations using the wrappers and describe them using the color symbols.

Use symbols to describe the following combinations: describe them using the color symbols.

- orange and chocolate
- chocolate, grape, and cherry
- grape, cherry, orange, and green

- OrCc
- CcGCh
- GChOrGn

- Sets of symbols like GCh and OrCcG are called formulas. Each symbol represents one kind of atom.
- If you have more than one of the same kind of atom in a formula you place that number after and a little below the line to show the number of atoms.
- This number is called a subscript.
- Example – Or2Cc

- Using the wrappers and colored paper squares, arrange the ‘atoms’ in the following combinations.
- If there is more than one ‘atom’, place the same ‘atoms’ on top of each other, but make sure you can count how many there are.

1 orange and 2 grapes ‘atoms’ in the following combinations.

OrG2

4 chocolates, 2 greens, 3 cherries

Cc4Gn2Ch3

Law of Conservation of Mass ‘atoms’ in the following combinations.

- Matter can neither be created nor destroyed during a chemical change.
- The total mass of all substances must be equal to the total mass after a chemical change.
- There can be no loss of mass nor gain of mass during a chemical change.

OrCh ‘atoms’ in the following combinations. 2 + CcG2 OrCcG4 + CcCh2

- Make the following combinations with your wrappers and papers.
- Compare and record the number of ‘atoms’ on each side of the arrow.

_____ Or _____ Or

_____ Ch _____ Ch

_____ Cc _____ Cc

_____ G _____ G

CcG + OrGn ‘atoms’ in the following combinations. 2 OrG2 + CcGn

Or + Ch2 Ch2Or

G + R2Ch RChG + R2

What needs to be done to have these combinations of atoms obey the Law of Conservation of Mass?

Stay tuned……. obey the Law of Conservation of Mass?

Tomorrow we will use coefficients to balance these equations!!

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