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Experiment - physical changes

Experiment - chemical changes

Elements and the periodic table

What is a resource

Errors and uncertainty

Accuracy and precision

Hypothesis

Experiment: The flying straw

Experiment: Making observations and inferences

Inferences

Experiment: Observing microorganisms

Experiment: Measuring abiotic features of the ecosystem

Useful and harmful microorganisms

Organisms in an Ecosystem powerpoint

Mass and weight prac