WorksheetsSubstances and Mixtures
Total questions: 15
Worksheet time: 8mins
Are you ready for this review, grade 7 students?
A pure substance is matter that has distinct properties and has no fixed chemical composition. TRUE OR FALSE?
True
False
Since a pure substance has a fixed chemical composition, are elements and compounds considered pure substances?
Which among the following are pure substances? There are three correct answers.
air
water
soil
sugar
nitrogen gas
This is a combination of two or more substances that can be separated by physical methods.
(a)
The components or ingredients of a mixture can be varied or changed. True or false?
True
False
What mixture is being represented by this illustration?
homogeneous mixture
heterogeneous mixture
In the next set of questions, identify whether the given mixture is homogeneous or heterogeneous.
Kaya pa ba, grade 7?
Chocolate chip cookies
homogeneous mixture
heterogeneous mixture
Cake batter
homogeneous mixture
heterogeneous mixture
Dishwashing liquid
homogeneous mixture
heterogeneous mixture
Beach sand
homogeneous mixture
heterogeneous mixture
hand sanitizer
homogeneous mixture
heterogeneous mixture
Banana ketchup
homogeneous mixture
heterogeneous mixture
Soil
homogeneous mixture
heterogeneous mixture
