2nd Grade Science Learning Activity: Measuring Mass

In this science activity, find out how much each object weighs. Use the weights to balance the scales and find the mass.

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This interactive activity is embedded in our Second Grade Science 2 course.


Students perform experiments to develop skills of observation and analysis, and learn how scientists understand the world. They demonstrate how pulleys lift heavy objects, make a temporary magnet and test its strength, and analyze the parts of a flower. Students will explore topics such as:

  • Metric System-liters and kilograms, and how scientists use them
  • Force-motion and simple machines; physicist Isaac Newton
  • Magnetism-magnetic poles and fields; how a compass works
  • Sound-how sounds are made; inventor Alexander Graham Bell
  • Human Body-cells; the digestive system
  • Geology-layers of the earth; kinds of rocks; weathering; geologist Florence Bascom
  • Life Cycles-plants and animals

If you like this activity you can buy this course directly or find an online school in your state.

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