After removing the shell from a raw egg, cell biologists soak the egg in either a hypotonic, hypertonic, or isotonic corn syrup solution. They calculate the percent change in mass and compare it to the strength of the solution in a...

Fourth graders taste different flavors on their popcorn. In this taste bud lesson, 4th graders make predictions about taste and dip popcorn into four different flavors. They record how the flavors tasted - sweet, salty, bitter, or sour.