1. 7th Grade Science Starter Monday, April 25
Atom is to molecule as ________________ is to cookie.
Atom is to molecule as ________________ is to hand.
Atom is to molecule as ________________ is to milkshake.
Atom is to molecule as ________________ is to a word.

2. Tuesday, May 9
What is the mass on the triple beam balance below? Give your answer to the accuracy of the instrument and with the correct units.

3. Atom: Smallest piece of matter.
Any square on the periodic table. (H, O, N, CL, Au)
Nucleus: Protons= Positive charge
Neutrons=No charge
Electrons=Negative charge

4. Molecule: Two or more atoms put together
Water= H2O
Hydrogen=2
Oxygen=1

5. I say You say Mass Matter measured by a balance

6. Volume Space measured by a graduated cylinder
I say You say
Volume Space measured by a graduated cylinder
or measured by a ruler
or measured by water displacement

7. I say You say
weight Gravity measured by a spring scale

8. I say You say Density Love measured by: Mass Volume Mass ÷ Volume

9. Matter
Anything that has mass and takes up space.

10. Mass
The measure of how much matter, or atoms are in an object.

11. Model
Something you create that is either larger or smaller than real life

12. Volume the amount of space or room that is in an object
volume = length x width x height

13. Meniscus
Curve in the upper surface of a liquid

14. How much stuff you can fit in a space
Density
How compacted something is
Density=mass
volume
(Mass ÷ Volume)
How much stuff you can fit in a space

15. diffusion-Pee-usion!
atoms or molecules moving from an area of high concentration to an area of lower concentration
(From a lot to a little)

17. Osmosis
Diffusion of water molecules from high concentration to low concentration.
A lot to a little.
Water follows salt and sugar.

19. Temperature
the measure of how hot or cold something is
Celcius

20. Particle
A tiny piece of something

21. Solid
fixed shape
fixed volume
particles vibrate slowly
low energy

22. Liquid
Phase of matter where particles can move freely, but remain connected to each other.

23. Gas
phase of matter where particles move freely and have lots of energy

24. Graduated Cylinder
used to measure volume of liquids

25. Heat Energy
makes particles move faster and spread apart

26. Expansion
when volume increases or gets larger

27. Contraction
when volume decreases or gets smaller