Final Answer:
7
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Explanation:
Let’s go through the story and find each broken safety rule:
1.
No safety goggles – SpongeBob and Gary left them on the table (they didn’t wear them while using the Bunsen burner and handling chemicals).
2.
Reaching across a flame – SpongeBob reached across the flame to get a test tube (fire hazard, can cause burns or knock things over).
3.
Tasting a chemical – Gary tasted the mystery substance (never taste lab chemicals—even if they seem harmless).
4.
Not reading directions first – Patrick skipped reading the instructions before experimenting.
5.
Using cracked glassware – Patrick used a test tube with a small crack (can break during heating and cause injury or spills).
6.
Holding test tube with tongs over flame – Patrick used tongs to hold the test tube *over* the flame (tongs are for holding hot objects, not for safely holding test tubes during heating—use a test tube holder instead).
7.
Leaving notebook near flame / not cleaning up – Patrick forgot to move his notebook away from the flame and almost caught it on fire; also, he didn’t clean out his test tube before storing it (contamination and fire risk).
That’s 7 broken safety rules.
Parent Tip: Review the logic above to help your child master the concept of spongebob science worksheet.