Question

Predict the effect that a chocolate coating would have on the rate at which an ice-cream melts. How could you test your prediction? ​

Answer 1

Answer:

Explanation:

For each group of four to six children:

1 thermometer that is easily read, preferably in both Celsius and Fahrenheit, and that is safe for use by children

1 (7-ounce) cup or larger plastic container

1 (8-ounce) clear plastic cup

Enough foil to cover the top — but not the sides — of the cup

~5 cups of ice cubes (not crushed ice) (Make sure the ice cubes are loose and not stuck together.)

1 cup of crushed ice

~2 cups of rock salt (the kind used to make ice cream)

1 timer, stopwatch, watch, or clock with a second hand

Paper Towels

For the facilitator:

A permanent marker

2 activity set-ups to use for demonstration purposes (One will be identical to the children's, the other will include all steps but salt will be omitted.)

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