7th Grade Week 6 ELA, Math and Science Answer Keys - Davison Community Schools

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CONTINUE READING
th
7 Grade Week 6
ELA, Math and Science
     Answer Keys
The Song of Wandering Aengus - Comprehension Questions Answer Key

1. Where does the speaker of the poem go?
      A. to the moon
      B. to a hazel wood
      C. to the sun
      D. to the bottom of a stream

2. What does the second stanza of the poem describe?
      A. a glimmering girl
      B. an old wanderer
      C. a trout in a stream
      D. a white moth in flight

3. The speaker is not feeling well at the beginning of the poem.

What evidence from the poem supports this conclusion?

      A. "I went out to the hazel wood" (line 1)
      B. "a fire was in my head" (line 2)
      C. "I dropped the berry in a stream" (line 7)
      D. "I went to blow the fire a-flame" (line 10)

4. Who is probably the speaker of the poem?
      A. a young man who likes to pick the silver apples of the moon
      B. wandering Aengus
      C. a glimmering girl
      D. a young woman who likes to pick the golden apples of the sun

5. What is the theme of the poem?
      A. contentment or peace
      B. charity or thanks
      C. longing or desire
      D. resentment or hate

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The Song of Wandering Aengus - Comprehension Questions Answer Key

6. What is the effect of the words "flickering out" (line 6) and "glimmering" (line 13)?
      A. They hint at what is going to happen at the very end of the poem.
       B. They create a powerful image in the reader's mind.
       C. They show how upset and troubled the speaker is.
       D. They slow down the meter of the poem with long syllables.

7. Read these lines from the poem:

I dropped the berry in a stream

And caught a little silver trout.

When I had laid it on the floor

I went to blow the fire a-flame, (10)

But something rustled on the floor,

And someone called me by my name:

What does the word "it" in line 9 refer to?

      A. "the berry" (line 7)
      B. "a stream" (line 7)
       C. the "trout" (line 8)
       D. "the floor" (line 9)

8. Where has the speaker wandered?

Students may respond that the speaker has wandered through hollow lands
and/or hilly lands.

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The Song of Wandering Aengus - Comprehension Questions Answer Key

9. Name three things the speaker will do.

(any three of the following are acceptable):

     - The speaker will find out where the glimmering girl has gone.

     - The speaker will kiss the glimmering girl's lips.

     - The speaker will take the glimmering girl's hands.

     - The speaker will walk among long dappled grass.

     - The speaker will pluck the silver apples of the moon.

     - The speaker will pluck the golden apples of the sun.

10. Identify the mood of the poem and explain what the poet does to create this mood.

Answers may vary, as long as they are supported by the poem. For example,
students may respond that the mood is wistful. Students may then explain
that the poet creates a wistful mood by stating in detail the intention and
hopes of the speaker in pursuing the glimmering girl. The repeated
imagery of things disappearing-the stars "flickering out" in line 6, the
"glimmering girl" who fades in the air, the plucking of apples until "time
and times are done"-also contributes to the wistful mood.

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LESSON 3                                                                          Teacher Packet

Understanding Proportional Relationships
Read and solve the problems. Show your work.

1   Josie is making pizza dough. Complete the double number line by filling in the
    missing values. Then write an equation that models the relationship between the
    total cups of flour, c, and number of batches, n. Show your work.

                      3       1        1
      Cups of 0       4    12        24         3        3 34
      Flour

      Batches 0       1      2        3         4         5

    c 5 3n
        ··
        4
2   Lilli bought each of her friends a pair of colorful socks that cost $5.50.
    Complete the table to show how much Lilli paid to buy different numbers of
    socks. Then write an equation that shows the total cost, c, for p pairs of socks.

       Cost               $5.50       $11.00 $16.50 $22.00 $27.50

       Pairs of socks       1              2            3             4               5

    c 5 5.5p
3   Explain how using a table is similar to using a double number line and how it
    is different.
    Possible answer:
    Double number lines and tables both show corresponding values in a
    proportional relationship. The ratios formed by corresponding values are
    always equivalent in both a table and a double number line. A double
    number line usually starts at 0 and increases incrementally. A table does
    not necessarily start at 0 and may not increase incrementally.
4   Mrs. Lopez types at a constant rate. The constant of proportionality for the
    relationship between the number of words she types, w, and the number of
    minutes she types, m, is 38. Write an equation to show this relationship.
    w 5 38m

                            © 2020 Curriculum Associates, LLC. All rights reserved.                14
Teacher Packet

Interpreting Graphs of Proportional
Relationships
The graph shows the cost of apples at a local market. Use the graph to answer
problems 1–3.
                                                                                                            y
 1   What is the cost of 1 apple and of 3 apples?                                                      5
                                                                                                     4.5
     How do you know?                                                                                  4
                                                                                                     3.5
     Possible answer: One apple costs $0.75, and 3 apples

                                                                                      Cost ($)
                                                                                                       3
     cost $2.25. The points (1, 0.75) and (3, 2.25) are on                                           2.5
                                                                                                       2
     the graph. The x-coordinate of 1 corresponds to                                                 1.5
     the y-coordinate of 0.75, and the x-coordinate of                                                 1
                                                                                                     0.5                             x
     3 corresponds to the y-coordinate of 2.25.                                                        0
                                                                                                           0 1 2 3 4 5 6 7 8 9 10
                                                                                                                Number of Apples

 2   What does the point (0, 0) represent in this context?
     Possible answer: (0, 0) means that 0 apples cost $0.00.

 3   What does the point (2, 1.5) represent in this context?
     Possible answer: The cost of 2 apples is $1.50.

The graph shows Manuela’s earnings for the number of hours she spends
tutoring. Use the graph to answer problems 4 and 5.
                                                                                                            y
 4   How much does Manuela earn for each hour of tutoring?                                           100
                                                                                                      90
     Explain.                                                                                         80
                                                                                      Earnings ($)

     Possible answer:                                                                                 70
                                                                                                      60
                                                                                                      50
     $10 per hour; Possible explanation: The graph                                                    40
     goes through the point (1, 10). The y-coordinate                                                 30
                                                                                                      20
     associated with the x-coordinate of 1 is the constant of                                         10                             x
     proportionality.                                                                                  0
                                                                                                           0 2 4 6 8 10 12 14 16 18 20
                                                                                                                 Hours Worked

 5   Write an equation that shows the relationship between Manuela’s earnings, y, and
     hours, x.
     y 5 10x

                                                                                                                        Page 1 of 2

                            © 2020 Curriculum Associates, LLC. All rights reserved.                                                      15
Teacher Packet

Interpreting Graphs of Proportional
Relationships continued
The graph shows the distance Jason’s family traveled on a recent road trip.
Use the graph to answer problems 6–8.

 6                                                                                                                y
     What is the constant of proportionality?                                                             250
                                                                                                          225
     Explain how you know.

                                                                                       Distance (Miles)
                                                                                                          200
     50; Possible explanation: The point (1, 50) is on                                                    175
                                                                                                          150
     the graph. The y-coordinate associated with the                                                      125
                                                                                                          100
     x-coordinate of 1 is the constant of proportionality.                                                 75
                                                                                                           50
                                                                                                           25                          x
 7   Identify and interpret one other point on the graph.                                                   0
                                                                                                                 0 1 2 3 4 5 6 7 8 9 10
     Possible answer: The point (2, 100) means that
                                                                                                                      Hours Traveled
     Jason’s family traveled 100 miles in 2 hours.

 8   Write an equation that models the distance, d, traveled in t hours.
     d 5 50t

The graph shows the cost per pound of chicken salad.
Use the graph to answer problems 9 and 10.                                                                        y
                                                                                                           75
                                                                                                          67.5
 9   Randy claims that he can purchase 3.5 pounds of chicken                                               60
                                                                                                          52.5
                                                                                      Cost ($)

     salad for $23.50. Is he correct? Explain.                                                             45
                                                                                                          37.5
     No; Possible explanation: According to the graph,                                                     30
     3.5 corresponds to the point halfway between 22.5                                                    22.5
                                                                                                           15
     and 30, and 23.5 is not halfway.                                                                      7.5                         x
                                                                                                             0
                                                                                                                 0 1 2 3 4 5 6 7 8 9 10
10 Explain how you can determine how much chicken salad                                                           Chicken Salad (pounds)
     may be purchased for $52.50.
     Possible answer: You can find the x-coordinate that
     corresponds with the y-value of 52.5 on the graph.

                                                                                                                            Page 2 of 2

                            © 2020 Curriculum Associates, LLC. All rights reserved.                                                        16
Acids, Bases, and Salts Cloze

 Hydrochloric acid____ is a strong acid which can be used to clean rust off of steel. Sodium
hydroxide, commonly known as lye, is a highly caustic base that is used to make soap. Both of
these substances can cause severe burns if they come in contact with human skin. However,
when these two very dangerous substances combine, they form ___table salt ____ and
___water____, both of which are completely harmless.
This process of combining acids and bases to make salts and water is known as
____neutralization___. In this reaction, the acid and base _____cancel_____ each other out.
There are many different kinds of salts. In general, a salt is a compound of positive and negative
___ions____. Often the positive ions are ___metals____ such as sodium and the negative ions
are ___non-metals___ such as chlorine.
In the absence of water, these ions can form ___crystals______ which have a high
___melting____ point and are brittle. Many salts ___dissolve_____ readily in water.
Acid, Base, and Salts Worksheet-going further
        Hydrochloric acid and sodium hydroxide will combine to form sodium chloride (table
salt) and water. While sodium chloride and water separately are fairly harmless, if this reaction
is actually done in a lab, the sodium chloride and water could react with each other and form the
hydrochloric acid and sodium hydroxide. This is called a reversible reaction or reverse reaction.
Certain conditions are needed for this to happen and it cannot happen if you just have a salt
solution at home!
       Keep in mind for a neutralization reaction between an acid and a base, the amount of acid
and the amount of base need to be equal to each other for them to cancel out.
        Some more information on salts. A salt is any metal combined with a family of
chemicals called halogens. If you have a periodic table, the elements on the left side of the table
are metals. If you look at the second column in from the right, you will see a family that starts
with F, Cl, Br, and I. This family is the halogens. So any metal combined with F (Fluorine), Cl
(Chlorine), Br (Bromine), or I (Iodine) is a salt.
                                    Electromagnetism Cloze
Magnetism and electricity are connected in a way that is very useful to people. Magnetic fields
can be used to generate electric ___currents___ and electric currents can be used to generate
___magnetic____ fields. This connection between magnets and electricity is called
electromagnetism____. How does this work? As __coils____ of wire spins in a magnetic
____field____, a current flows through it.
A device that uses a coil of spinning wires in a magnetic field to make electricity is called a
____generator____. A ___hydroelectric______ power plant, for example, uses the energy of
flowing water to generate electricity. As water flows from a high place to a low place, it pushes
on _____turbine____ blades causing them to spin. Coils of wire are attached to the spinning
turbine and placed next to magnets. As the coil ____spins____ in the magnetic field, electric
current flows through the wires. In short, the ____kinetic_____ energy of water is transformed
into electrical energy.
This process can be reversed to produce an electric ____motor_____. An electric current
through a coil of wires in a magnetic field will cause the coil to start spinning. This coil is
attached to an axle, which can be used to move something else such as a wheel or a blade.
___Fans___ and toy cars are examples of devices that use an electric motor to generate motion.
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