Chemical Substances and Extended Structures
Authored by Melissa Resac
Chemistry
8th Grade
NGSS covered
Used 33+ times
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33 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when an atom makes a connection with another atom?
Their increase in size makes them visible to the human eye.
The atoms create a more complex particle called a molecule.
The atoms become a single atom depending on which one is stronger.
They undergo a process that causes the to make copies of themselves.
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is one way scientists tell atoms apart when creating models since they all appear as round spheres?
They use different colors.
The use different shapes.
They assign each atom a number.
They limit the number of atoms they work with to eight.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A diamond is a crystal that:
is made of one element.
is made of multiple elements.
extends forever.
has a spherical structure.
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do molecules in a crystal arrange themselves?
Crystals of molecules always form in a spherical shape.
Crystals of molecules form in a regular, repeating pattern.
Crystals of molecules form in an irregular, diamond-like pattern.
Crystals of molecules always form in a shape similar to a snowflake.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is carbon able to form both graphite and diamond?
Diamond is a carbon polymer and graphite is a carbon crystal.
Carbon can be arranged in different atomic-level structures.
Carbon bonds with different atoms to form both graphite and diamond.
Graphite's subunits have an irregular repeating pattern, but diamond subunits do not.
Tags
NGSS.MS-PS1-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is graphite a good writing tool, whereas diamond is not?
Graphite has hexagonal sheets which are weakly connected to each other, whereas diamond has a strong cubic structure.
Graphite has hexagonal sheets which are strongly connected to each other, whereas diamond has a weak cubic structure.
Graphite has a weak cubic structure, whereas diamond has hexagonal sheets which are strongly connected to each other.
Graphite has a strong cubic structure, whereas diamond has hexagonal sheets which are weakly connected to each other.
Tags
NGSS.HS-PS2-6
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do snowflakes have a hexagonal shape?
There are six atoms in a water molecule.
Crystals typically form in repeating patterns of six.
It is very difficult for a liquid to freeze into any other structure.
Their atomic-level structure is made up of crystals with six sides.
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