Test your pupils' understanding of the scale from macro to atomic. While displaying images of different materials, learners identify what they would need to make that material visible. Their choices range from the human eye to an...

In this evaluating expressions worksheet, students solve and complete 27 various types of problems. First, they evaluate each expression listed. Then, students simplify the expression and write the answer using only positive exponents.

Students compare the size and shape of tubes that can be measured, to the size and shape of "nanowhiskers" that are too small to see. They practice measuring, calculating and graphing the ratio of circumference to diameter of a circle,...