Natural Hazards
Grade 4 - Science - On Level
Preparedness comparison: which natural hazard fits this evidence: a steep hillside becomes muddy after storms?
- hurricane
- landslide
- flood
- blizzard
Earth-process evidence: what impact can an earthquake have?
- shaking can knock shelves and buildings loose
- fire can spread quickly through dry plants
- wind and water can damage homes
- travel can become unsafe
Earth-process evidence: which solution best reduces the impact of a hurricane?
- prepare emergency supplies and clear walkways
- use storm shutters and plan evacuation routes
- remove all weather forecasts from the town
- plant deep-rooted vegetation and avoid building at the slope base
Earth-process evidence: which comparison supports the solution for an earthquake?
- anchored shelves reduce falling objects better than loose shelves
- raised equipment stays drier than equipment on the floor
- cleared space slows fire spread better than brush against walls
- prepared supplies help during blocked travel better than no supplies
Risk-reduction design: why is "water lawns during the storm" a weak solution for a blizzard?
- it directly reduces the named impact
- it was chosen after comparing hazard evidence
- it addresses the most likely damage
- it does not match the hazard's likely impact
Hazard plan: which natural hazard fits this evidence: the area sits near an active fault?
- wildfire
- blizzard
- flood
- earthquake
Hazard plan: what impact can a landslide have?
- fire can spread quickly through dry plants
- wind and water can damage homes
- water can cover roads and enter buildings
- soil and rocks can slide downhill
Community safety review: which solution best reduces the impact of a hurricane?
- remove all weather forecasts from the town
- anchor shelves and practice drop-cover-hold drills
- clear dry brush away from buildings
- use storm shutters and plan evacuation routes
Hazard plan: which comparison supports the solution for a flood?
- cleared space slows fire spread better than brush against walls
- raised equipment stays drier than equipment on the floor
- deep roots help hold soil better than bare slopes
- anchored shelves reduce falling objects better than loose shelves
Community safety review: why is "open windows to let sparks pass through" a weak solution for a wildfire?
- it directly reduces the named impact
- it was chosen after comparing hazard evidence
- it does not match the hazard's likely impact
- it addresses the most likely damage