Which of the following best explains why orange juice is a liquid and not a solid?
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Question 2
2.
Most materials that are classified as magnetic can also be classified as —
A science class was conducting an investigation about the properties of matter. They had 100 mL of seven different samples and had to identify the properties for the samples. The results of the investigation are shown below.
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Question 3
3.
One of the samples found in the Properties of Matter table above is a sample of aluminum. If aluminum is a solid metal that is not magnetic, but can conduct electricity, which sample is it?
A student places 10 glass marbles in a beaker of water. The marbles sink to the bottom of the beaker and remain there overnight.
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Question 4
4.
Which properties of the marbles does this demonstration show?
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Question 5
5.
A student is investigating how temperature affects the mass of a ball of clay. She will record the mass of the clay, place it in the freezer for 15 minutes, and measure the mass of clay again. She will repeat the investigation every 15 minutes for a total of two hours.
Which tool will the student need to complete the investigation?
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Question 6
6.
When spring hits cold regions, frozen rivers begin to thaw and ice floes can be observed floating down river. Are there ice floes on the bottom of the river?
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Question 7
7.
Read the passage from a scientist's notes.
Which phase of matter has the scientist described?
The diagram below shows a closed container with particles of a pure chemical substance, X.
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Question 8
8.
If X is in the gas state, what will most likely happen when the lid is removed from the container?
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Question 9
9.
The table below shows four substances and their uses.
Which substance is the best conductor of electricity?
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Question 10
10.
Anita had a nail, a pencil, a rubber eraser, a paper clip, and a plastic ruler. She tied a piece of string around each object and used tape to suspend each one from the edge of a table so it could swing freely. Then she brought a horseshoe magnet slowly toward each object and observed what happened. What question did Anita want to answer with her experiment?
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Question 11
11.
Richie wants to do an experiment to determine what kind of material is best at conducting heat. Using your knowledge of science, what would be a good hypothesis for his experiment?
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Question 12
12.
By studying the terms and direction of arrows in the diagram, you can determine that —
State 1 is a __________
State 2 is a ___________
State 3 is a ________
Other Answer Choices:
liquid
gas
solid
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Question 13
13.
The diagram below shows an electrical plug with a cord that has been cut. Use the diagram to answer the question.
Which parts of the electrical plug will insulate against heat loss and will not conduct electricity well?
Select TWO correct answers.
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Question 14
14.
When an oil spill occurs in the ocean, oil tankers are able to skim the floating oil off the ocean's surface. Why does the oil float on the ocean's surface?
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Question 15
15.
Four small metal cylinders were filled with boiling water and placed into different containers. The containers were all the same size and shape but were made of different materials. A thermometer was placed in a small opening at the top of each cylinder so that the temperature of the water could be recorded. Results were recorded in the table above. Which container was the best insulator?