Name: ______________________________________ Date: ________________________
Student Exploration: Water Pollution
Vocabulary: bacterial pollution, nutrient pollution, sediment pollution, toxic pollution, water
pollution
Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
1. Water pollution is the addition of harmful substances to water. Some of these substances
are found at home. What household chemicals might be harmful if not disposed of properly?
Some household chemicals are bleach, oven cleaners, drain de-cloggers, and insect and
weed killers.
2. What are some other causes of water pollution? Some causes of water pollution are
human and plastic waste.
Gizmo Warm-up
The Water Pollution Gizmo will teach you about some of the main
kinds of water pollution. On the TYPE tab, under Types of
pollution, check that Toxic is selected. Read the paragraphs on
the right and bottom of the Gizmo.
1. What is toxic pollution? Toxic pollution is contaminated
water, soil, and air that is harmful or poisonous.
2. What are some examples of toxic pollutants listed in the Gizmo? Radioactive waste,
pesticides, lead, oil, and paint.
3. Can you think of other examples of toxic substances, not listed in the Gizmo? Some
examples are bleach, cell phones, and electronic devices.
2019
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