Mid-Term TEKS 8.6A-E, 8.7A-B, 8.8A-B
Authored by AAREN HORAK
Science
8th Grade
NGSS covered
Used 1+ times
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38 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
What is the difference between a physical and chemical change? PICK TWO
Physical change: New substance formed
Chemical change: No new substance formed
Physical change: irreversible
Chemical change: reversible
Physical change: No new substance formed
Chemical change: New substance formed
Physical change: reversible
Chemical change: irreversible
Tags
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a chemical formula, how do I distinguish between a single element and a compound?
Elements have multiple capital letters, Compounds have one
Compounds have multiple capital letters,
Elements have one
There is no difference
3.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Which elements are present in the following formula?
NaCl
(a)
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What do the small numbers (subscripts) after an element or compound mean?
The number of molecules of that substance in the reaction
The number of atoms of that element in the molecule
The amount of energy in that substance
Numbers divisible by the subscript
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the following chemical equation, how many different elements and compounds are represented? 4Fe + 3O₂ → 2FeO₃
3 elements and 1 compound
2 elements and 2 compounds
3 elements and 0 compounds
2 elements and 1 compound
Tags
NGSS.MS-PS1-1
6.
FILL IN THE BLANKS QUESTION
30 sec • 1 pt
Which number represents the atomic number of an element on the periodic table?
(a)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elements in a periodic table are arranged from left to right and top to bottom in order of
Increasing atomic number
Increasing specific heat
Decreasing atomic mass
Sum of the number of protons and electrons
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