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. Students make a spectroscope and use the spectroscope to separate white light from an incandescent light bulb into the different colors of the spectrum. Students study the shape of a convex lens and determine that a convex lens can magnify the sizes of objects viewed through it.
Students then repeat the exercise with a hand lens.
They position both lenses to make a refracting telescope and use it to observe distant objects.