1. First Test Review!

2. Before starting an experiment, you should
try an experiment on your own
open all containers and packages
read all directions and make sure you understand them
handle all the equipment to become familiar with it 30

3. Matter is made up of particles too small to be seen by the human eye
Matter is made up of particles too small to be seen by the human eye. What are these particles?
Atoms
Compounds
Mixtures
oxygen 30

4. What is the measurement in centimeters at point A?6
5/16
0.6 1 30

5. Which of the following is not a compound?
HCl Cl
H2O
CO2 30

6. If you get hurt or injured in any way, you should
tell your teacher immediately
find bandages or first aid kit
go to the principals office
get help after you finish the lab 30

7. Identify the lab equipment.
scale
Graduated cylinder
ruler
triple beam balance 30

8. The electron cloud is Much smaller than the atom’s nucleus
Much larger than the atom’s nucleus
About the same size as the atom’s nucleus
Always changing size 30

9. An atom's mass number equals the number of...
protons plus the number of electrons
protons plus the number of neutrons
Protons
neutrons 30

10. What unit of measurement would you use with this tool?
meter
liter
gram
yard 30

11. When an atom loses a valence electron, it becomes a(n) _____________ ion.
Positive
Negative
Neutral
Polyatomic 30

12. Participant Scores
Points
Participant

13. Fastest Responders (in seconds)
Participant

14. What SI unit do we use for mass?
pounds
inches
Kelvin
grams 30

15. Two elements chemically bonded form
Compound
Mixture
Molecule 30

16. Elements in the periodic table are arranged by
How they react with metals
Half-life and atomic mass
Properties and atomic number
The number of neutrons and ions 30

17. How much mass does the object have?
35 g
330.5 g
335 g
3305 g 30

18. Neutrons: 42 Electrons: 36 Element: Arsenic
Normal atom
Isotope
Cation
anion 30

19. What are neutrons? Uncharged particles in an atom’s nucleus
Negatively charged particles in an atom’s nucleus
Uncharged particles that form a cloud around an atom’s nucleus
Charged particles that form a cloud around an atom’s nucleus 30

20. Identify the lab equipment.
beaker
Graduated cylinder
Erlenmeyer flask
funnel 30

21. Which of these tools would be used to find the length of the football field?
graduated cylinder
meter stick
triple beam balance
thermometer 30

22. The nucleus of the atom contains
Protons, neutrons and electrons
Only electrons
Protons and neutrons
Electrons and protons 30

23. How many electrons do atoms need to be stable?1 2 6 8 30

24. Participant Scores
Points
Participant

25. Fastest Responders (in seconds)
Participant

26. An atom consists of Metals, nonmetals, and metalloids
Electrons, protons, and neutrons
Elements, compounds, and molecules
Products, reactants, and catalysts 30

27. A substance made of only one type of atom is a(n)
Element
Compound
Mixture
Molecule 30

28. An ion is an atom with More than one proton More than one nucleus
No electrical charge
An overall electrical charge 30

29. How many Valance electrons does Iodine Have?6 16 7 17 30

30. The atomic number of an element tells you the atom’s
Mass
Number of neutrons
Weight
Number of protons 30

31. How much liquid is in the graduated cylinder?
76 mL
70.3 mL
73 mL
74 mL 30

32. The positively charged particles in an atom are
Electrons
Neutrons
Nuclei
Protons 30

33. What are electrons? Positively charged particles
Negatively charged particles
Particles with no charge
Particles whose charge can change 30

34. The atomic number of this pictured element is 28   Ni
Nickel 30

35. The total number of protons and neutrons in the nucleus determines the atom’s
Symbol
Atomic number
Atomic mass number
size 30

36. How many electrons does Oxygen need to fill its outer shell?3 4 1 2 30

37. Participant Leaders
Points
Participant

38. Fastest Responders
Seconds
Participant

39. What does the 1 stand for? Hydrogen Atomic number Atomic mass
Atomic explosion 30

40. What is the measurement in centimeters at point E?56
5.6
5.5
5 3/16 30

41. An element's identity is determined by the number of
Electrons
Protons
Neutrons
Valence 30

42. What does the 1.0078 stand for? Hydrogen Atomic number Atomic mass
Atomic explosion 30

43. Protons: 15 Neutrons: 16 Electrons: 15
Normal atom
Isotope
Cation
anion 30

44. Atomic Number: 26 Neutrons: 30 Electrons: 25
Normal atom
Isotope
Cation
anion 30

45. Negative ions form when atoms _________ valence electrons.
Lose
Gain
Share 30

46. Cations are
Postive
Negative
Only on the right side
Nonmetals 30

47. When I enter the science lab, I will
begin my experiment
play with equipment
wait for the teacher to give instructions
read the instructions myself and get started 30

48. How long is the crayon?
71 cm
7.1 cm
7.0 m
7.0 cm 30

49. What should you do when you have completed your laboratory activity?
sit and talk to your lab partner
leave your area messy
wash your hands thoroughly
clean up your area 30

50. Participant Leaders
Points
Participant

51. Fastest Responders
Seconds
Participant