Because they are reactive with air and water, scientists store alkalis in oil. Scholars complete a series of four puzzles reviewing information about alkalis. They match the alkali to its formula, the salt formed with H2SO4, and the salt formed with HCl. 

Concepts

alkalies, alkali metals

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Additional Tags

science

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Instructional Ideas

• Encourage advanced pupils to race to complete the grids on the computer as part of their review
• Allow struggling scholars to complete the worksheet in their own time either in class or at home

Classroom Considerations

• Assumes confidence solving gridlock puzzles with few provided instructions

Pros

• Each puzzle increases in difficulty, making it a great, progressive lesson
• Online version offers up to three hints

Cons

• None

Common Core

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