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Worksheet
Curated OER

"Television"

For Students 4th - 5th
In this reading comprehension instructional activity, students read a text about the beginnings of television. Students answer 10 multiple choice questions.
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Lesson Plan
Curated OER

Using A Winogradsky Column to Analyze Microbial Communities

For Teachers 4th - 11th
Students use easily obtained materials to study ecological succession in a microbiological community. They collect water samples from outdoor sources in plastic bottles to observe and record changes.

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