Download Objective 3 Stations Student Sheet

Station 4 – Signs of a Chemical Reaction
Observations Before the
Reaction
Physical State
NAME______________________________
Sodium Bicarbonate
Acetic Acid
Color
Transparent or Opaque?
Smell
Temperature (oC)
Observations After the Reaction
Carbon Dioxide
Water
Sodium Acetate
Physical State
Color
Transparent or Opaque?
Smell
Temperature (oC)
XXXXXXXXXXXXXXXXXX
What are the signs that a chemical reaction has occurred?
1. ______________________________________________________________________________
2. ______________________________________________________________________________
3. ______________________________________________________________________________
4. ______________________________________________________________________________
The formula for the reaction is:
NaHCO3 + C2H4O2  NaC2H3O2 + H2O + CO2
Fill in the table below. Is the reaction balanced? ______________
# of Atoms in Reactant
Element
Na
H
C
O
# of Atoms in Product
Station 5 – Density of a Solid
Sample
Description
Mass
(color, length,
(g)
shape, etc.)
Volume
Initial
Calculated
of sample Volume
Volume
and water of Water
Of Sample
(mL)
(mL)
(mL)
Use Subtraction!
Example
Smooth, round 100g
cylinder, shiny,
silver colored,
metal, solid
100mL
50mL
Calculate Density
(g/ml)
Will it
sink
Remember:
Formula,
Substitute, Solve
or
D=m/v
100mL-50mL=
D=m/v
50mL
D = 100g/50mL
float
in
water?
Sink
D =2g/mL
1
2
3
4
1. Is it possible for two substances to have a different mass, but the same density? Explain.
2. Does the shape of an object affect its density? _________________ Explain your answer.
3. The density of water is 1.0g/mL. Substances with a density greater than 1.0g/mL will sink when placed in
water. Substances with a density less than 1.0g/mL will float in water. Based on the densities you
calculated, which of your samples should float in water? Which of your samples should sink in water? Fill in
the column in your data table!
Station 6 – Periodic Table
Answer the following guided reading questions as you read the information on pages 97 – 99 in the Periodic
Table packet for station 6.
1. How is the periodic table organized?
2. What family of elements has valence electrons at two energy levels?
3. What are the elements called that are between metals and nonmetals?
4. Which family of nonmetals has seven valence electrons?
5. What are some properties of noble gases?
6. What is another name for groups on the periodic table?
7. Why is this other name a good description for groups?
8. Define valence electrons.
9. List three families of elements on the periodic table.
10. Identify three elements that have properties of both metals and nonmetals.
11. Identify three elements that are important to life on Earth.
12. Which two elements are most similar?
a.
b.
c.
d.
Fe and Co
Li and F
Cu and Ag
H and O
14. Which of the following elements is a liquid at
room temperature?
a. N
b. B
c. Br
d. Si
13. What are metalloids?
a.
b.
c.
d.
The metal elements with small atomic numbers
The elements between metals and nonmetals
Chunks of metal ore
Nonreactive metal elements
15.Which of the following is a
better conductor?
a. Ge
b. S
c. Au
d. C
Station 7 – Parts of the Atom
*Fill in the following table about the parts of the atom. (AMU stands for atomic mass unit.)
PART OF THE ATOM
ELECTRIC CHARGE
LOCATION IN ATOM
MASS (in AMUs)
proton
neutron
electron
*Complete the table for the elements with atomic numbers 1-10. Remember APE!!
ELEMENT
ATOMIC NUMBER
ATOMIC MASS
PROTONS
NEUTRONS
ELECTRONS
NAME
1
2
3
4
5
6
7
8
9
10
*Draw a picture of an atom for each of the first ten elements and write the number of valence electrons.
1. hydrogen
V.E._____
2. helium
V.E._____
3. lithium
V.E._____
4. beryllium
V.E._____
5. boron
V.E._____
6. carbon
7. nitrogen
V.E._____
8. oxygen
V.E._____
9. fluorine
V.E._____
10. neon
V.E._____
V.E._____
Station 8 – Metals, Nonmetals, and Metalloids
Property
Description
Does this property describe metals,
nonmetals, or metalloids?
1. Where are metals located on the table? (Left, Right, or Zigzag Line)
2. List three examples of metals.
3. What are the properties of metals?
4. Where are nonmetals located on the table?
5. List six nonmetal elements that are essential for life.
6. What are the properties of nonmetals?
7. Which nonmetal is located on the side of the periodic table where you would normally find metals?
8. Where are metalloids located on the table?
9. List the eight metalloids.
10. What are the special properties of metalloids?
11. What is another name for metalloids?