This two-page mind map asks 4th grade students to reduce the damage natural hazards do to people, following NGSS 4-ESS3-2. Four branches cover earthquakes, floods, volcanoes, and tsunamis, under names such as The Ground Shakers and The Giant Waves. Each branch asks about the harm to people and the engineering solutions that reduce it. A fifth branch compares two fixes by cost or safety, and a blank branch lets students invent a category.
4-ESS3-2
“Generate and compare multiple solutions to reduce the impacts of natural Earth processes on humans.*”
Comparing the Fixes, where students name two solutions for one hazard and judge them, plus the engineering solution prompt on each hazard branch.
Two prompts ask what happens to buildings and roads when the ground shakes and which engineering solutions help buildings stay standing.
Students describe how heavy rains or overflowing rivers affect towns, then name barriers or designs that keep floodwaters away from homes.
Prompts cover the dangers of an erupting volcano and how monitoring tools and warning systems save lives.
Students write what happens to coastlines when a tsunami hits and how sea walls or evacuation routes protect people.
Students pick one hazard, name two different solutions, and decide which is better on cost or safety.
A blank branch for a new category, with ideas such as Emergency Kits, Animal Safety, or a hazard the student wants to study.
Pre-assessment
Give it at the start of the hazards topic and collect it. What students already know about sea walls or warning systems tells you where to begin.
Research groups
Give each group one hazard branch to research. Groups then present, and everyone fills in the rest of the map.
Class debate
Turn Comparing the Fixes into a debate. Half the room argues for cost and half for safety, using the same hazard.
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