Chemical Reactions
Authored by Erika Roth
Science
6th - 8th Grade
NGSS covered
Used 752+ times
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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In making a pizza, which process involves a chemical change?
mixing spices for the sauce
slicing pepperoni for the topping
spreading cheese on the pizza
baking the dough to form the crust
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
NGSS.MS-PS1-4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a physical change but not a chemical change?
A log gives off heat and light as it burns.
A tree stores energy from the Sun in its fruit
A penny lost in the grass slowly changes color.
A water pipe freezes and cracks on a cold night.
Tags
NGSS.MS-PS1-4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a characteristic of all chemical changes?
A different state of matter is produced.
Some mass is converted to energy.
Some form of light is given off.
A new material is formed.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Examine the following chemical reaction:
H20 + CO2 → C6H12O6 + O2
What are the reactants?
H20 + CO2
C6H12O6 + O2
→
H20 + CO2→ C6H12O6 + O2
Tags
NGSS.MS-PS1-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Examine the following chemical reaction:
H2O2 → H2O + O2
What are the products
H2O2
H2O + O2
H2O2→H2O + O2
Tags
NGSS.MS-PS1-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which of the following examples has a chemical reaction occurred?
After putting liquid batter into a hot pan, the batter solidifies and begins to turn brown.
After turning on a blender filled with fruits, the fruit is chopped up and mixed together.
After taking a tray filled with ice cubes out of the freezer, the cubes begin to melt.
After adding a spoonful of sugar to a mug of hot coffee, the sugar dissolves completely.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the Law of Conservation of Mass,
matter is always created in a chemical reaction
matter is always destroyed in a chemical reaction
matter is created and then destroyed in a chemical reaction
matter is not created or destroyed in a chemical reaction
Tags
NGSS.MS-PS1-5
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