5 questions
If students perform an experiment where they measure the changes in the volume of water in three containers after five day and record the changes in this chart, what graph will accurately represent the volume of water after the 5 days in each of the three locations described?
If you want to see how much liquid water is produced from a sample ice cube, what must occur to perform the investigation?
You have to keep the sample ice cube in the freezer
You have to perform the experiment outside
The physical state of the ice cube must stay the same
The temperature of the sample ice cube must change
If a student completes an experiment by placing chocolate samples on plates around campus and fills in this chart, what question are they most likely trying to answer?
What location the candy changes state the fastest?
What causes the candy to keep its shape?
Why does candy change state?
At what temperature does the candy melt?
At the end of a birthday party you are cleaning up, and notice the birthday candles no longer have melted wax dripping down the sides. What is the best explanation as to why the wax is no longer liquid?
Heat from the flames caused the melted wax to evaporate
Liquid wax condenses and is absorbed by the candle
Liquid wax changes back into a solid as it cools off
None of these explain what happens
You perform an experiment where you put two different ice cubes on separate plates - one ice cube is 20 grams and the other is 50 grams. What is the one result listed below that will be the same for both ice cubes, even though they start out with different masses?
Time it takes to completely melt
Temperature at which they melt
Amount of liquid produced once completely melted
Volume of each ice cube