2. What types of hazards do certain substances pose?
Sept 12/ Activity A2
Types of Hazards
LEARNING TARGET: I can infer hazard classifications a substance may have and assess appropriate safety precautions.
CHALLENGE Q
What types of hazards do certain substances pose?
VOCAB:
corrosive flammable hazardous materials
mixture evidence

3. Corrosive
Flammable
Hazardous materials
Mixture
Evidence
A substance that reacts with a solid material (dissolves)
Catches on fire when exposed to a spark, flame or heat source (burns)
Substances that are harmful to human health or environment.
Combination of more than one pure substance that CAN BE separated
Fact or information that helps you come to a conclusion

4. safety precautions for potassium hydroxide: goggles and gloves
PROCEDURE AND DATA
MATERIALS:
PROCEDURE: Read on pg. A6-8 and summarize
DATA: WS 2.1 Classroom Substances WS 2.2 Venn Diagram of Classroom Substances
ANALYSIS
- Discuss and answer Q 2 on pg. A-9
safety precautions for potassium hydroxide: goggles and gloves

5. ANALYSIS - Separate Sheet of paper – Turn in
Independently answer Q 3 on pg. A-9
Which substance from WS 2.1 greatest hazard to humans / animals ? Use: WS Classroom Substances & Claim-Evidence-Reasoning
Make a Claim (A statement or conclusion that answers the original question/problem)
Giving 2 pieces of Supporting Evidence (Scientific data that supports the claim)
Explain Your Reasoning (A justification that connects the evidence to the claim)

6. toxic (poison), flammable (burns), corrosive (dissolves)
ANS CHALLENGE Q
What types of hazards do certain substances pose? A:
toxic (poison), flammable (burns),
corrosive (dissolves)
HOMEWORK
1. Finish Analysis CER