1.
Define matter?
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2.
Which of the following has/have mass?
Air, Water, Sound, Light, Wood, X-Ray
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3.
Which of the following is/ are matter (s)?
Copper, Sound, Plastic, Air, Water, Light, Ultraviolet rays, Heat from the fire
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4.
What are the parts of an atom?
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5.
Label the diagram a) Which of them have positive charge? ________________ b) Which of them have negative charge? ________________ c) Which of them do not have any charge? _______________ d) Which of them are found in nucleus? ___________________ e) Which of them move around? _________________________ f) What determine the properties of the matter? ______________
6.
Define Substance?
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7.
Explain why aluminum is a substance.
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8.
What is an element?
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9.
How do atoms of different elements differ?
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10.
Which is an example of an element? a.
Air b. Water c. sodium d. sugar

11.
What is a Compound?
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12.
Can property of compound be different than the properties of constituent elements? Explain or give example
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13.
Compare elements and compound?
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14.
What is a chemical formula?
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15.
What is a mixture?
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16.
What are the two types of mixtures?
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17.
Define Heterogeneous mixtures with example?
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18.
Define Homogeneous Mixture with example?
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19.
Differentiate between homogeneous mixture and heterogeneous mixture?
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20.
Compare Compounds and solution with example.
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