In this total solar eclipse activity, students solve 7 problems about the angular size of the moon, the distance the sun and moon should be to match in diameter, the number of years it will take for the moon to be at a certain distance...

Students examine what iridium flares are and when they occur.  In this iridium flare lesson students complete an activity to see how far overhead Iridium satellites are.

For this science reading comprehension worksheet, students read a selection that describes the characteristics and habits of owls. They answer 7 multiple choice questions based on the reading.

In this proofreading worksheet, students write "SENT" in front of complete sentences and correct sentences with errors, 19 total. 

This brief site examines the normal eye, the near- sighted eye, the far sighted eye, and the astigmatic eye.Text explanations are supplemented by pictures.