Chemical Changes
Authored by Brittany Simmons
Science
6th Grade
NGSS covered
Used 101+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The image shows what happens when cold medicine tablets are placed in room-temperature water. What evidence would indicate that a new substance is produced?
The tablet dissolves in water
The water becomes cloudy
The water level increases slightly
Bubbles are given off
Tags
NGSS.MS-PS1-2
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A student measures out 100 mL of two different clear liquids and then pours one into the other. The mixture, which has a volume of 200 mL, turns bright red, then begins to become quite cold. In this process, the first evidence that a new substance had formed was observed when the –
student measured the liquids
volume was seen to be 200 mL
color changed to bright red
temperature of the mixture decreased
Tags
NGSS.MS-PS1-2
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Four mixtures are made by combining two clear liquids and observations are made. Which results indicate that a new substance has formed?
Mixture 1: The combined liquids have a greater mass than either of the starting liquids.
Mixture 2: The liquids, when mixed, produce a white solid which settles to the bottom.
Mixture 3: The mixture of the two liquids takes the shape of the container they are in.
Mixture 4: The denser of the two liquids lies below the other less dense liquid.
Tags
NGSS.MS-PS1-2
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Which of the following observations is the best indicator that a new substance has been formed?
A solid has become a liquid.
A substance has changed color.
A solid has dissolved in a liquid.
The volume of a substance increased.
Tags
NGSS.MS-PS1-2
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The table records the observations that result from four different combinations. Which combination of substances shows evidence that a new substance was formed?
Baking soda and vinegar
Sodium chloride and water
Oil and water
Iron filings and sand
Tags
NGSS.MS-PS1-2
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Students combine several chemicals and record the observations in their science notebooks. A list of the observed results is given here.
-Production of a gas (bubbles)
-Phase change (solid to liquid)
-A precipitate forms
-Change in shape -
Crystals dissolving
-Heat produced
How many of the observations are evidence that a new substance was formed?
3
4
5
6
Tags
NGSS.MS-PS1-2
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A granular substance is added to a liquid. Which of the following would provide evidence to suggest a chemical change has taken place?
The liquid gives off heat.
The granules dissolve completely
The volume of the liquid increases.
The granules seem to get smaller.
Tags
NGSS.MS-PS1-2
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