Gizmos_ Water
Pollution
2019
Name: ______________________________________ Date: ________________________
Student Exploration: Water
... [Show More] 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.
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2019
Activity A:
Types of water
pollution
Get the Gizmo ready:
Check that the TYPE tab and Toxic pollution are
selected.
Question: What are the main types of water pollution?
1. Read and learn: Besides toxic pollution, the other types of pollution are sediment pollution,
nutrient pollution, and bacterial pollution. You have already described toxic pollution on
the previous page. Read about the other types, and describe each in your own words.
Sediment pollution
Description: Sediment pollution is caused by the erosion of soil in waterways, usually
during heavy rain.
Causes: It is caused by the soil being eroded after heavy rainfalls.
Consequences Sediments pile up in reservoirs, rivers, and harbors, destroy fish and
wildlife, and cloud the water, blocking sunlight interfering with aquatic plants.
Nutrient poll [Show Less]