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Tootsie Pop Chemistry

Tootsie Pop Chemistry. Chemical Symbols, Formulas, and Equations. 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.

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Tootsie Pop Chemistry

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  1. Tootsie Pop Chemistry Chemical Symbols, Formulas, and Equations

  2. 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

  3. Purpose Use chemical symbols to represent chemical formulas and equations.

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

  5. In your notebook, draw a picture of each combination. • Which group can find the most combinations within 3 minutes?

  6. 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?

  7. What might this activity suggest about elements?

  8. Draw a picture description of this combination. • Now write a description of this combination in words.

  9. Can you think of a better way? • 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!!!

  10. Grape – G • Cherry – Ch • Chocolate – Cc • Orange – Or • Green – Gn • Raspberry -R

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

  12. Use symbols to describe the following combinations: • orange and chocolate • chocolate, grape, and cherry • grape, cherry, orange, and green • OrCc • CcGCh • GChOrGn

  13. 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

  14. 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.

  15. 3 cherries and 5 chocolates Now write the formula - Ch3Cc5

  16. 1 orange and 2 grapes OrG2 4 chocolates, 2 greens, 3 cherries Cc4Gn2Ch3

  17. Law of Conservation of Mass • 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.

  18. OrCh2 + 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

  19. CcG + OrGn2 OrG2 + CcGn Or + Ch2 Ch2Or G + R2Ch  RChG + R2

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

  21. Stay tuned……. Tomorrow we will use coefficients to balance these equations!!

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