Intro to Chem Part 2

Quiz
•
Science
•
7th - 8th Grade
•
Hard
+4
Standards-aligned
Charles Martinez
FREE Resource
45 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Figure A shows a beaker containing water, sand, and salt. The salt is totally dissolved in the water. Figure B shows the contents of the beaker being poured through filter paper in a funnel over a flask. Figure C shows the same flask after sitting at room temperature for 15 days. After 15 days, the flask contains only solid salt particles. the insoluble substance is
sand
salt
Tags
NGSS.MS-PS1-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Figure A shows a beaker containing water, sand, and salt. The salt is totally dissolved in the water. Figure B shows the contents of the beaker being poured through filter paper in a funnel over a flask. Figure C shows the same flask after sitting at room temperature for 15 days. After 15 days, the flask contains only solid salt particles. A solution can form with the mixture of
sand,salt and water
salt and water
water only
sand and salt
sand and water
Tags
NGSS.MS-PS1-2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Figure A shows a beaker containing water, sand, and salt. The salt is totally dissolved in the water. Figure B shows the contents of the beaker being poured through filter paper in a funnel over a flask. Figure C shows the same flask after sitting at room temperature for 15 days. After 15 days, the flask contains only solid salt particles. Why are the contents of the flask in figure B are classified as a mixture.
because it is the physical combination of two or more substances. Can be separated by filtration and settling.
because it is the chemical combination of two or more elements. Cannot be physical separated.
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Two friends are melting chocolate to make fudge. They do not have much time and want the chocolate to melt faster. Suggest TWO ways they can get the chocolate to melt faster.
heat it more by putting it into direct sunlight
crush it into smaller pieces
shade it
make it colder
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
One example of a physical change is
burning paper.
baking cookies
the rusting of iron
breaking your pencil when you are mad
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a chemical property?
hardness
color
melting point
reactivity
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which process changes matter into one or more new substances?
physical change
chemical change
conservation
freezing
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
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