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Nature Of Science Review
Test Description: Reporting category 1
Instructions: Answer all questions to get your test result.
1) A student obsevres the temperature of water as 53 degrees celsius. How many many more degrees celsius must the temperature rise before it reaches the boiling temperature of water?
A
159 degrees celsius
B
53 degrees celsius
C
43 degrees celsius
D
47 degrees celsius
2) Four samples of water are measured in Liters: W= 50mL, X=100mL, Y=150mL, Z=200mL. If Sample W boils at a temperature of 100 degrees celsius, at which temperature would Sample Z be expected to boil?
A
100 degrees celsius
B
200 degrees celsius
C
50 degrees celsius
D
25 degrees celsius
3) Four students add sugar to their hot tea. Which property of sugar remains the same when the sugar is in the tea solution?
A
The taste of the sugar
B
The size of the sugar crystals
C
The color of the sugar
D
The texture of the sugar
4) Danny made a mixture using equal amounts of salt and pepper. The salt grains were the same size as the pepper grains. What should the student do to most easily separate the pepper from the salt?
A
Run a smalll magnet through the mixture to attract the pepper
B
Use a strainer with a fine wire screen to remove the pepper
C
Use a pair of tweezers to remove each grain of pepper
D
Put the mixture in water and filter the pepper out of the water
5) A mixture of beads with various sizes, each one is made of plastic, glass or steel, was placed in a container. The beads are easy to separate because-
A
all beads have the same mass
B
all beads are solid
C
all beads are attracted to a magnet
D
all beads are less dense than water
6) A small bowl contains a misture of toothpicks and glass marbles. The easiest way to separate the mixture WITHOUT touching it would be to-
A
add glue to the mixture
B
pour the mixture into a paper cone
C
place a magnet in the bowl
D
add water to the bowl
7) 10g of four different powdered solids are added to four different beakers. 100mL of water are added to the beaker, stirred, and allowed to sit for an hour before recording observations. Which question is trying to get answered in this investigation?
A
How much water is needed to cause a substance to change state?
B
Which substances dissolve in water?
C
At what water temperature do the substances dissolve?
D
What causes a substance to sink when placed in water?
8) Khrystian added a powdered drink mix to water and the solution turned orange. Khrystian decided the taste was too strong, so she poured out half of the liquid and added more water. Which of the following most likely occured when the water was added?
A
The liquid had a sweeter taste.
B
The orange color became lighter.
C
The physical state changed.
D
None of the above
9) Nathan built a sidewalk and pressed salt particles into the concrete while it was still wet. When the concrete dried, Nathan washed the sidewalk with water. What most likely happened to the salt?
A
It turned into a solid.
B
It evaporated into a gas.
C
It turned into concrete.
D
It dissolved in the water.
10) Kathy observed liquid wax dripping down the side of a burning candle. Several hours after putting out the flame Kathy observed there was no longer any liquid on the side of the candle. Which statement explains what may have happened to the liquid?
A
The liquid wax condensed and was absorbed by the candle.
B
None of the above.
C
The heat given off by the flame caused the candle wax to evaporate.
D
The liquid wax changed back into a solid as it cooled
11) Khloe makes a model of the water cycle by using a cup, some water, and plastic wrap. After Khloe places the model near a sunny window, moisture forms on the inside of the plastic wrap. What change did Khloe most likely observe in the model?
A
The formation of clouds
B
The warming of air
C
Condensation
D
Freezing
12) Nichole and Kayla placed two ice cubes in separate bowls. One ice cube had a mass of 80g. The other had a mass of 40g. Which result would be the same for both ice cubes in this investigation?
A
The time it took each ice cube to melt completely.
B
The total volume of each cube.
C
The temperature at which each ice cube melted.
D
The amount of liquid produced on each plate.
*select an answer for all questions
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