Students will learn structure of atoms and molecules. Use the process skill of making and using models. By the end of eighth grade, students will develop an understanding of evidence, models, and explanation. Students will make a model that shows how air particles move as air is heated and cooled.
Students make a model of the respiratory system.
The model is used to demonstrate what happens to the lungs when the diaphragm contracts and expands. Students interpret data in a table to determine the actual diameter of the planets and the diameter of each planet's model. Students use this information to measure and draw scale models of the planets. They sequence the models in their correct order from the sun.