Ahava~Love Assembly

Grade 3 Science Chapter 8 | Practice

Grade 3 Science Chapter 8: Practice and Independent Check

Student lessons | Practice | Teacher guide | Grade 3

Read each lesson first. Download the fillable workbook and save a private copy in a compatible PDF reader, or print this page. Complete Day 5 independently.

Day 1: Weather Hazards and Their Impacts

  1. Name two weather hazards and one possible impact of each.
  2. How is a hazard different from an impact? Give an example.
  3. Heavy rain is forecast near a low road. What information could help a family decide what to do?
  4. Explain why the same storm may affect two places differently.

Day 2: Warnings and Safe Decisions

  1. What is the purpose of a weather warning?
  2. Name two ways a community can share a warning.
  3. Why might someone not receive an alert? Give one improvement.
  4. Why should a family follow current instructions from local emergency officials?

Day 3: Structures and Flood Protection

  1. Describe how one building feature may reduce wind damage.
  2. Describe how a flood barrier may reduce an impact and name one limitation.
  3. In the model example, what was observed and what was inferred?
  4. Why are maintenance and local conditions important when evaluating a solution?

Day 4: Use Evidence to Compare Solutions

  1. In the model data, how many fewer cups reached the house with a barrier?
  2. Name two conditions the model comparison kept the same.
  3. What claim is supported by the model data, and what claim would go beyond the evidence?
  4. Suggest one change to improve the test or one limitation of the model.

Day 5: Independent Evidence Check

Use this evidence: Fictional evidence: A town tests two ways to share the same practice alert with 20 volunteers. A phone-only message reaches 14 volunteers; a combined phone-and-radio message reaches 18 volunteers. These results are from one small practice test, not a measurement of every resident.

  1. How many more volunteers received the combined alert? Show your calculation.
  2. What claim about this practice test is supported by the numbers?
  3. Give one reason the results may not describe every resident or future storm.
  4. Name one additional piece of evidence the town could collect before choosing an alert system.

Real-world weather solutions: Student source study and fillable workbook | Teacher answers. Use a FEMA case to identify evidence and explain its limits.