Procedure
1. Add each solution to cups labeled A, B, C, and D
2. Use a cotton swab and apply solution to tip of tongue
3. Repeat for solution on the sides, center, and back
4. Record if solution is tasted and what taste it is
5. Repeat 2-4 for remaining solutions
6. Use blue food dye on a cotton swab and apply to a 7mm area on the tongue
7. Have your partner count the amount of pink papillae
8. Record the amount
2. Use a cotton swab and apply solution to tip of tongue
3. Repeat for solution on the sides, center, and back
4. Record if solution is tasted and what taste it is
5. Repeat 2-4 for remaining solutions
6. Use blue food dye on a cotton swab and apply to a 7mm area on the tongue
7. Have your partner count the amount of pink papillae
8. Record the amount