Which type of magnet maintains a magnetic field at ALL times?

Electrons will move easily through aluminum. Based on this description, aluminum is a(n)

Students construct a simple circuit and place an item in the path. All of the following materials will conduct electricity EXCEPT __________. (steel, rubber, copper, aluminum)

Roman mixed his favorite small snacks into a trail mix. How did the physical properties of the different snacks change when he created the mixture?

Did a physical change or a chemical change occur to the crayon in the picture?

What must always happen in order for a chemical reaction to occur?

Jheel and Saanvi are trying to understand why the circuit they just built doesn’t work. The switch for their circuit is shown above. Why is the electricity not flowing in their circuit?

What form of energy is cause by moving electrons?

Weiyi poured lemonade into a cup and took a sip. She noticed the lemonade was warm, so she put it in the freezer. She forgot about it until the next day. When she took it out of the freezer, the lemonade had changed from a BLANK to a BLANK.

If you put the North ends of two magnets together, what will happen?

While eating an apple Justin noted that a chemical change was about to take place. Where in the digestion process do chemical changes happen?

Sammy's toast got stuck in the toaster. As he reached for a fork to get it out, him mom stopped and asked Sammy to unplug the toaster, first. Why?

Two clear substances are combined inside a plastic bag. The plastic bag is tightly sealed. The substances in the bag becomes warm. Is this a physical change or a chemical change?