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Soil pH Effect on Germination of Specific Weeds
Learners collect weed seeds from three varieties of weeds (knapweed, thistle, or toadflax, for example they may choose others in addition to the spotted knapweed.) They sterilize soil for thirty containers, plant seeds in sterile soil,...
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Chemical Reactions
In this chemical reactions worksheet, students solve 16 exercises by writing and balancing chemical reactions. They calculate the concentration of various solutions.
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Identifying Anions
In this anions worksheet, students are given a table showing 9 anions, the test that indicates the presence of each anion and what will be observed when each substance is added to the anion.
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Solution Chemistry Investigation
Students engage in a instructional activity that is concerned with the concepts related to solution chemistry. They calculate the molar mass of various chemical compounds. Then students predict the anion ratio for ionic compounds....
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Final Worksheet
In this chemistry worksheet, students complete 15 short answer questions and problems on empirical and molecular formula, naming and writing chemical formula of compounds.
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Extraction of DNA from White Onion
Pupils investigate techniques involved in extracting and isolating DNA. Students extract and observe onion DNA.