Physical vs Chemical Science

Quiz
•
Science
•
8th Grade
•
Hard
+2
Standards-aligned
Charles Martinez
FREE Resource
36 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A student observes some sugar as it is heated and burns. The student concludes that a chemical reaction has occurred. Which of the following observations about the burning sugar provides evidence of a chemical reaction? (8.5E)
Heat is added to the sugar crystals.
The sugar melts and becomes a liquid.
The temperature of the sugar increases.
Gas is produced as the sugar turns black.
Tags
NGSS.MS-PS1-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following could be the chemical formula for sulfuric acid (shown in the picture)? (8.5D)
HSO
HSO4
H2SO4
HS2O4
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
All of the following chemical equations are balanced EXCEPT -- (8.5F)
a
b
c
d
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Based on the reaction shown, which statement best SUPPORTS the Law of Conservation of Mass? (8.5F)
Zn + 2HCl -----> ZnCl2 + H2
There are more chlorine atoms in the reactant.
There are more hydrogen atoms in the product.
The number of chlorine atoms is unequal in the reactants and products.
The number of reactant atoms is equal to the number of product atoms.
Tags
NGSS.MS-PS1-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many elements are found in 2H2SO4? (6.5C)
2
3
4
5
Tags
NGSS.MS-PS1-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which two compounds contain the same total number of atoms? (8.5D)
a
b
c
d
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When you chew, the particles of food are broken down before they are swallowed. How would you describe this kind of change? (8.5E & 7.6B)
A physical change because swallowing is a physical motion
Both a physical and chemical change because food starts being digested before it is swallowed
A chemical change because the particles of food get mixed together
A physical change because the particles of food are getting smaller
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