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During concrete operations, children begin to see the need for standard units and develop skills in using them to measure length, area, volume, weight, and _____.

Which of the following is NOT an appropriate means of engaging family members with classroom STEM?

Which of the following refers to efforts to protect and preserve natural resources?

Water shapes the face of the earth through melting glaciers, rain, snow, and _____.

Which of the following is NOT one of the three areas involved in computational fluency?

Which of the following is NOT a valid statement describing the process of inferring?

Reverse transcriptase is used by viruses to change viral RNA into what nucleic acid to infect host cells? 

A child examines some patterns drawn on a card, takes some cubes to make the same designs, and then adds two more designs. This activity is an example of _____.

Computer software and apps for digital devices ____.

Match the bacterial species with the disease it causes.