Students become aware of the effects of tides on the Earth's rotation. In this tides lesson, students calculate the number of seconds lost over various periods of time.

Students define a word from the natural disaster list, find a location in the world where this type of disaster has occurred and discuss what they have identified. They design a crossword puzzle of natural disaster words or check a...

Students examine different natural disasters.  In this natural disaster lesson plan students complete a worksheet that has the students label the pictures of natural disasters and answer questions.