WorksheetsPS1 LS1 Extra Review (7th)
Total questions: 20
Worksheet time: 13mins
What would this model be used to show?
Atom
Hardness
Molecule
From this picture, what can we say about the sugar?
Sugar is soluble in water
Sugar is not soluble in water
Sugar is sometimes soluble in water
What does this picture represent?
A Pure Substance
A Mixture
A Molecule
An Atom
TRUE or FALSE: Properties are unique characteristics that help identify a substance and distinguish one substance from another.
TRUE
FALSE
A (a) is a statement about the results of an investigation.
Your (a) is scientific data used to support the claim.
Your (a) ties together the claim and evidence
What is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled.
Variable
Analysis
Phenomena
A ____________ is an observable fact or event that occurs in nature
Variable
Analysis
Phenomena
What is a description of something you experience using your 5 senses
Observation
Property
Substance
Mixture
A __________ is made up of only one type of material (atoms and molecules) all the way through
Molecule
Atom
Substance
Mixture
(a) is the relative resistance of a mineral to scratching. It uses the Moh's scale.
Which of the following are states of matter?
Solid
Liquid
Odor
Gas
Balloon
________ is the amount of matter (or stuff) in an object
Volume
Ratio
Mass
Density
___________ is the measure of an amount of space a substance takes up.
Volume
Ratio
Mass
Density
What TWO things do you need to calculate density?
Mass
Length
Volume
Solubility
TRUE OR FALSE: If I break a piece of chalk in half, it will have the same density.
True
False
Which of the following are PROPERTIES?
Hardness
Size
Shape
Melting Point
Solubility
TRUE OR FALSE: Melting point is when the substance melts completely
True, It is when the substance melts COMPETELY
False, It is when the substance STARTS to melt
Why can substance be different sizes, but have the same mass?
Because they are thicker
Because their molecules can be arranged differently.
Because they can be flat.
