tuesday warm up october 22. a glass beaker is placed on a hot plate. five hundred milliliters of...
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Tuesday Warm UpOctober 22
A glass beaker is placed on a hot plate. Five hundred milliliters of room temperature water are added to the beaker. If the temperature continues to increase, the water in the beaker will most likely-
A turn into a solidB become more denseC turn into a gasD show no change in temperature
Water changes its state of matter when heat is added or taken away. When water reaches its boiling point the particles-
A are closer togetherB stay the sameC are moving more rapidlyD are moving more slowly
The temperature of water in a beaker measures 87˚C. How many more degrees must the temperature increase to reach the boiling point?
A 23˚CB 13˚CC 212˚D 100˚C
A cotton ball was catapulted from 2 different sized paper clips. The table below shows the distances the cotton ball traveled.
Which conclusion is best supported by the results shown in the table?A A cotton ball travels farther when launched from a small paper clipB Using a large paper clip allows the cotton ball to travel fartherC A cotton ball does not travel as far when launched from a large paper clipD Using a smaller cotton ball allows it to travel even farther.
Paper Clips
Trial 1 Trial 2 Trial 3
Large Paper Clip
10 cm 14 cm 19 cm
Small Paper Clip
8 cm 5 cm 8 cm
A cotton ball was catapulted from 2 different sized paper clips. The table below shows the distances the cotton ball traveled.
What variable was tested in the cotton ball experiment?A size of the cotton ballB size of the paper clipC distance the cotton ball traveledD type of catapult
A cotton ball was catapulted from 2 different sized paper clips. The table below shows the distances the cotton ball traveled.
What is the significance of conducting three trial runs for the cotton ball experiment?A Conducting three trials shows the differences in the way the experiment was done.B The results of two of the trial runs are incorrect and need to be redone.C Repeating the investigation increases the validity of the results.D It is fun to repeat the investigation a observe cotton balls traveling through the air.