Starting in 2015, all chemicals must have a pictogram of the associated chemical hazards. A brain-building activity reviews four of the basic symbols found in a typical science laboratory. Through a fun puzzle, scholars apply their knowledge of the symbols and the related hazards.

Concepts

safety signs, lab safety, symbols

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Additional Tags

science

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Instructional Ideas

• Use as homework when doing laboratory and chemical safety at the beginning of the year

Classroom Considerations

• Requires strong prior knowledge of the hazard symbols for toxic, corrosive, flammable, and health hazards
• Assumes prior knowledge of completing Sudoku-style puzzles

Pros

• Students can complete the activity online with a timer or on a worksheet to accomodate different learning styles
• Works well in a traditional or flipped classroom

Cons

• None

Common Core

RST.6-8.4 RST.9-10.4 RST.11-12.4