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Davis Science Part 3
Test Description: Changes chemical physical
Instructions: Answer all questions to get your test result.
1) Which is a chemical change?
A
breaking a glass cup
B
frying an egg
C
boiling water
D
crushing a piece of bread
2) Julia is following a recipe to make batter for a cake. She uses a scale to weigh each ingredient separately. Julia can best use this information to predict the weight of the mixed batter by
A
subtracting the weight of the wet ingredients from the weight of the dry ingredients.
B
dividing the weight of the wet ingredients from the weight of the dry ingredients.
C
multiplying the weights of each ingredient together
D
adding the weights of each ingredient together
3) Which steps in the water cycle most directly cause floods?
A
evaporation and precipitation
B
precipitation and runoff
C
runoff and condensation
D
condensation and evaporation
4) A container is placed in front of a heat lamp. After a few hours, water droplets begin to form on the container. Which part of of the water cycle does this best demonstrate?
A
evaporation
B
condensation
C
precipitation
D
transpiration
5) Nick and Allison are conducting experiments in science class. In which experiment will the students most likely observe a new material being formed?
A
boiling the same amount of different liquids
B
burning different types of paper
C
dissolving different amounts of salt into water
D
melting ice in containers at different temperatures
6) Water evaporates mostly from
A
oceans
B
snow
C
clouds
D
land
7) If 10 grams of water are added to 5 grams of salt, how much salt water will be made?
A
5 grams
B
15 grams
C
2 grams
D
10 grams
8) After a rain, a puddle of water remains on a sidewalk. After a day of sunshine, the puddle is gone. Which process is most responsible for the disappearance of the puddle?
A
condensation
B
precipitation
C
transpiration
D
evaporation
9) Which abiotic factor most influences the water cycle?
A
air
B
soil
C
wind
D
sun
10) What is the difference between chemical and physical changes?
A
physical change is rust forming
B
chemical change is ice melting.
C
physical changes make a new substance, chemical is just a different form of same substance
D
chemical changes make a new substance, physical is just a different form of the same substance
*select an answer for all questions
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