1. Quarterly review

2. Your turn Independent Workload Dependent Beats/minute Relationship
Direct

3. Testable Hypothesis or not
Many people use flowers for food not

4. Testable Hypothesis or not
Plants that receive more water will grow more flowers. Yes, testable

5. Testable Hypothesis or not
If a flower is large then it received a lot of water while growing No, because of past tense

6. Your Turn
A toy hammer has a mass of 44g. It is placed in water to get the volume. What is the density of the hammer?
44/4= 11g/mL

7. Your Turn
A rock with a mass of 12g was placed in a graduated cylinder to calculate the volume. What is the density of the rock?
12/3= 4g/mL

8. Your turn
Solid changes to a liquid at the _______ point.
Melting

9. Your turn During a phase change, what does the temperature do?
Stay the same

10. Which moves the most rapidly?
Your Turn
Which moves the most rapidly?
Gas

11. Which has a smaller volume in the picture?
Your turn
Which has a smaller volume in the picture?
solid

12. Your Turn
What is the atomic mass?
16.00

13. Which letter shows the atomic number?
Your Turn
Which letter shows the atomic number? D

14. Your Turn
Hydrogen (H) and Oxygen (O) combine to make water (H2O). Hydrogen and Oxygen are both__________.
Elements

15. How many protons do lithium (Li) atoms have?
Your Turn
How many protons do lithium (Li) atoms have? 3

16. Think! Reminders What is it asking for? What are they testing me on?
What do I already know?
If you’re stuck circle that number on the answer sheet and come back to it.

17. Matter Review

18. 21. Find the hypotheses
a. Heat will flow from warmer matter to colder matter.
b. If a plant is tall then it received lots of water while growing.
c. Nothing travels faster than the speed of light.____
d. Ice cream tastes better than pizza.____
f. All events in your life are controlled by the movement of the stars.______
g. Water that has salt will boil faster than water without salt. _______

19. 20. Graphs Independent: Dependent: Relationship: Mileage Car’s value
Inverse

20. 19. Graphs Independent: Dependent: Relationship: Bottom edge Area
complex

21. 18. Graphs Independent: Dependent: Relationship: Speed Heart rate
Direct

22. 17. Density
If an object with a density of 2.7 g/cm3 is placed in a fluid with a density of 2.3 g/cm3 the object will __________.
Sink

23. 16. Density
Platinum has a density of 20 g/cm3. Water has a density of 1g/ml. Which of the following has the lowest mass?
2 cm3 of platinum
4 cm3 of platinum
50 ml of water
80 ml of water
2 cm3 of platinum (2x20=40)

24. Mass measures the amount of __________________ in an object.
15. Density
Mass measures the amount of __________________ in an object.
Matter

25. 13.
If a liquid is cooled and the temperature decreases, the molecules move faster or slower? ___________
slower

26. Rubber is a _______________________ solid.
12.
Rubber is a _______________________ solid.
amorphous

27. Salt is a __________________________ solid.
11.
Salt is a __________________________ solid.
crystalline

28. 10. In which phase of matter do the molecules move most rapidly? Solid
Liquid
Gas

29. 9. solid In which phase of matter do the molecules move least rapidly?
Liquid
Gas
solid

30. 8.
You can tell the atomic mass from the atomic number because the atomic mass has a ______________ point. Decimal

31. 7.
If an atom has 12 protons, how many electrons does it need for the total charge to be zero (neutral)? ____ 12

32. 6.
Neon has an atomic number of 10. How many protons does neon have? _______ 10

33. 5.
The atomic number is the number of ____________. Protons

34. Bonus question: How many neutrons does it have?4.
An oxygen atom has a mass of 17 and 8 protons. What is its atomic number? _______ 8
Bonus question: How many neutrons does it have? 9
17-8=9

35. 3. Circle the words that are elements. Air Helium (He) Hydrogen (H)
Sunlight
Iron (Fe)
Water

36. 2. Why do all atoms of an element have the same chemical properties?
They have the same size electrons
Their electrons all have the same charge.
They all have the same number of protons
They all have the number of neutrons

37. 1.
How many elements are there?
Three
Four
About 100
Many millions