WorksheetsModeling Matter Unit Test - 5th
Total questions: 20
Worksheet time: 10mins
Food scientists work to ensure that the food we eat is...
safe
affordable
tasty
all of the above
All matter is made up of particles too small to be seen called....
gases
pokemon
atoms
True or False: Oil and vinegar molecules are attracted to each other.
True
False
True or False: Both oil and vinegar molecules are attracted to lecithin molecules.
True
False
What is created when two or more atoms join together?
monster
matter
molecule
Atoms and molecules are too small to be observed directly. They can only be seen on the…
balance scale
nanoscale
macroscale
States of matter include
solids
liquids
gases
all of the above
Molecules are farthest apart in a…
solid
gas
liquid
Molecules are packed most tightly together in a...
solid
liquid
gas
Water molecules consist of...
hydrogen atoms
oxygen atoms
both A and B
What is an inference?
A random guess based on luck
A guess made with your eyes closed
An educated guess based on evidence
What property of matter allows solids like sugar to dissolve in liquids like water?
color
attraction
texture
Scientists can separate mixtures using...
chromatography
a filter
a centrifuge
all of the above
What happens when you mix a solid into a liquid?
Sometimes the solid dissolves
sometimes the solid leaves sediment
Both A and B
What happens when you mix a liquid into another liquid?
Sometimes the two liquids separate into layers
Sometimes the liquids stay mixed
Both A and B
True or False: An emulsifier turns an unstable mixture into a stable mixture.
True
False
True or False: A molecule is larger than an atom.
True
False
How do you get two liquids that usually separate to stay mixed?
Add vinegar
Add an emulsifier
Add sugar
Which solid leaves sediment when added to a liquid?
Sugar
Pepper
Salt
Which acts as the best emulsifier when added to oil and water?
Flour
Cornstarch
Lecithin
