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WorksheetsPure Substances and Mixtures
Total questions: 14
Worksheet time: 4mins
___________ are the smallest unit of an element that maintains the properties of that element.
Atoms
Elements
Compounds
Mixtures
What is this?
Element
Compound
Homogeneous Mixture
Heterogeneous Mixture
Chicken noodle soup
heterogeneous mixture
homogeneous mixture
A pure substance that cannot be broken down into other substances by chemical or physical means.
compound
atom
mixture
element
Which of these is an element?
Salt (NaCl)
Water (H20)
Oxygen (O)
Carbon Dioxide (CO2)
Which of these is a compound?
Aluminium (Al)
Carbon Dioxide (CO2)
Nitrogen (N)
Sand
Which of these is a mixture?
Laundry Detergent
Salt (NaCl)
Oxygen (O)
Fluorine (Fl)
Air is:
An element
A compound
A mixture
None of these
A _____________ contains a variety of elements and compounds that are not chemically combined with each other.
compound
element
molecule
mixture
A _________________ mixture is one where the substances are evenly spread throughout.
heterogeneous
homogeneous
pure substance
Which of the following is classified as a pure substance?
Lemonade
Fruit punch
ketchup
Helium
A ______________ mixture is one that does not have a uniform composition.
heterogeneous
homogenous
pure substance
Fruit Loops, pizza, and Skittles are examples of ____________________ mixtures.
heterogeneous
homogeneous
pure
Coffee, mouthwash, and vinegar are examples of __________________ mixtures.
heterogeneous
homogeneous
pure
