Search for Life- Lessons 3 & 4 Review

If we have an equal number of negative and positive charges what do we have?

• neutral atom

• positive ion

• negative ion

Surface tension allows water molecules to _________________ the most

• fall apart

• do nothing

• stick together

Tags

NGSS.MS-PS2-5

True or false. Balloons acquire positive charges when rubbed on hair or a sweater.

• True

• False

Protons and neutrons are found in the ____________ of an atom.

• outer areas

• nucleus

• nowhere

Tags

NGSS.MS-PS1-1

True or false. Protons can be changed, transferred or shared.

• True

• False

Protons and electrons have this kind of relationship.

• Attraction

• Repulsion

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

If an electron gets closer to a proton what happens to the attraction?

• stronger

• weakter

Tags

NGSS.MS-PS2-3

If you have a positive object and a 2nd positive object they will ___________ each other

• attract

• repel

If the balloon that you rubbed on your hair is negatively charged and your water has positive charges what will happen?

• They'll go away from each other

• They'll be attracted to each other.

• Nothing will happen

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

True or False. When tapes tapes attract one another, they must be oppositely charged, which means electrons have been transferred from atoms of one piece of tape to atoms in the other piece of tape.

• True

• False

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5