Which describes a chemical change? A. A new substance is created.

B. It is a permanent change.

C. It can be a physical change.

D. A phase change is occurring.

U whay do you need with?

No. an alpha particle is a pair of protons and a pair of neutrons, i.e. a helium

For lesson: cameras, plant presses, newspaper, paper towels, clip boards, pencils, calculators, field guides, metric measuring tapes, paper, transect squares, colored pencils, ph meters, light meters, computers, etc.for extension: baggies for soil samples collecting, distilled water, hand shovels, beakers, boiled rice, microscopes, well microscope slides or regular microscope slides with cover slips