Mr. green gave his students a set of items.

they had a toothpick, pencil, paper clip, safety pin, nail, and dime. he also gave them a magnet. he told them to predict which items are magnetic.

how can they test their predictions?
a.
see which items stick to the magnet
b.
measure each of the items
c.
see which items stick to the pencil
d.
weigh each of the items

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.

Nan element’s square on the periodic table, the number with the greatest numerical value represents the