Warm-up 1
O What should you do at the beginning of each
class? There are two essential things.
1.
2.
Warm-up 2
Accident
Touch
Burner
Loose
disposal
return
apron
instructions
chemical
acid
fume
combustible
dangling
fire
water
O When working in the lab you should perform only those
activities assigned by your teacher. Carefully follow all
_____________, both written and oral. Wear safety goggles
and a lab __________ at all times. Avoid apparel that prevents
safety hazards such as ___________ garments and
_____________jewelry . Keep your hair, clothing and all other
_________ materials away from open flames. Any activity that
involves poisonous vapors must be carried out in a
___________ hood.
Warm-up 3
O If you do not finish your classwork, what
does it become?
O What questions do you have regarding your
lab safety test today?
Warm-up 4
O Look up the Scientific Method in your book
and write the steps of the method down in
order. (they are also on 2 posters in the
room)
Warm-up 5
O What is your Hypothesis in regards to what
brand of tennis shoe is most popular at
HMS? Could you test this hypothesis? Make
sure you start out your answer with I
believe….
Warm-up 6
You are testing to see which type of laundry
detergent works the best. Tide, Cheer, or Arm and
Hammer. List the independent variable,
dependent variable, controls and constants you
would have in your experiment.
Warm-up 7
Bob wanted to know which type of bait would
catch the most bass. He used nightcrawlers,
crickets, and corn. List the independent
variable, the dependent variable, constants,
and controls in this experiment.
Warm-up 8
O What is your hypothesis as to what color of
candy is found the most in a fun size bag of
M&M’s? Can this be tested and how?
Warm-up 9
Define
Hypothesis
Independent variable
Dependent variable
Constant
Control
Warm-up 10
O If I were testing how different materials wear
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out as you wash them and I used cotton,
silk, flannel and jean material and washed
them 10 times in tide detergent. Please list
the following
Independent variable
Dependent variable
Control
constants
Warm-up 11
O What are the states of matter ?
O Give an example of each type.
Warm-up 12
O States of Matter Acrostic Poem
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O
O
O
O
O
O
s
T
A
T
E
S
O
F
M
A
T
T
E
R
Warm-up 13
O Which of the following would be the least
viscous? (lowest viscosity)
A. vegetable oil
B. syrup
C. water
D. Molasses
Warm-up 14
O What state of matter is least energetic?
O Most energetic?
O What is the force that pulls drops of water to
the ground making the raindrops appear
spherical at the bottom?
Warm-up 15
O If you had no vision how would you describe
the characteristics of a water bottle?
Warm-up 16
O Describe the physical characteristics of your
science book. You should be able to list 5
things.
Warm-up 17
O Density is a physical property. Which
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example shows the object with the most
density
A. the object that floats on top
B. the object dissolved
C. the object that floats in the middle
The object that sinks to the bottom
Warm-up 18
O Tell whether the following are physical or
chemical changes
O Evaporation
O Sublimation
O Corrosion
O Melting
O A firework exploding
Warm-up 19
O Tell me if the following are physical or
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chemical changes.
A match being lit
Paper being shredded
Silver being melted
Photosynthesis
Making a solution of sugar and water
Warm-up 20
O A custodian puts an air freshener in a locker
room. The disk eventually evaporates.
Describe what kind of a change this is and
defend your answer.
No Warm-up
O Get all ten warm-ups out, staple them if
necessary and turn them in
O MAKE SURE YOUR NAME IS ON IT
Warm-up 21
O Bobby went to the ball game and spilled
ketchup on his shirt. When he arrived home,
his mom put the shirt into the washer with
bleach. She accidentally spilled ammonia
into the washer with the bleach. A noxious
cloud formed. Describe the physical and
chemical changes that took place.
Warm-up 22
O Look at the Periodic table on page 338 in
the new book. What information can you
gather about the elements by looking at this
periodic table?
O List at least 5 facts
Warm-up 23
O If an atom has 18 protons and 19 electrons
what is the charge of the atom?
O How can that charge be changed? List two
ways.
Warm-up 24
O Bradley says that Germanium has 32
protons, 31 electrons and a mass number of
72. Is he correct? Explain why or why not.
Warm-Up 25
O Fill in the missing information based on your
NOTES. DO NOT USE THE BOOK.
(you should know how to find the missing
information)
Element atomic # E P Mass# Neutrons
Arsenic
33 __ __ 75
______
Thallium
___
81 __ ___
123
Warm-up 26
O Draw a Bohr Model of Cobalt
Warm-up 27
O What does the term sub atomic mean?
O What are the subatomic particles of an
element?
Warm-up 28
O Fill in the missing information based on
your NOTES. DO NOT USE THE BOOK.
(you should know how to find the missing
information)
Element atomic # E P Mass# Neutrons
Bromine
35
80
Antimony
51
71
Warm-up 29
O The periodic table has families/groups and
rows/periods.
Which way to the groups run and which way do
do the periods run?
What elements react most like Selenium?
Warm-up 30
O Draw the lewis Dot models for:
O Nitrogen
O Magnesium
O Sulfur
Warm-up 31
O What elements react simalarly to the
following?
O Nitrogen - ______________ and _________
O Magnesium _____________ and __________
O Sulfur _________ and _____________
Warm-up 31
O How many atoms do the following equations
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have?
How many elements do the following
equations have?
2MgO
H2SO4
Li3N
Warm-up
O Have warm-ups 21-31 out, stapled, name on
it, and ready to be turned in.
O If you have questions over elements,
compounds, substances (solution-samehomogeneous) or mixture (heterogeneous),
be prepared to ask those.
Warm-up 32
O Element compound solution or mixture?
O Lasagna
O Vinegar
O Table Salt
O Alcohol (C3H8O)
O Ink
O Iron
O Carbonated soft drink (coke)
Warm-up 33
O Substance or mixture?
O H20
O Milk
O Water
O Salt
O Soda
O Vinegar
coffee
Warm-up 34
O Ionic or covalent?
O Sodium gives chlorine an electron
O Hydrogen and water share electrons
O Has a negative charge
O Electrons are transferred
O Oxygen receives an electron from another
element
Warm-up 35
O Physical or chemical change?
O Iron rusts
O An air freshener evaporates
O Water and salt are combined to form a
solution?
O Sublimation
O Fireworks exploding
O Sodium hydroxide dissolves in water
Warm-up 36
O What step of the scientific method is the following: is it
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Question, hypothesis, experiment, data or conclusion
Do heavier objects bound higher on a trampoline?
The experiment showed Heavier objects bounce higher
on trampolines
I will drop a variety of objects from a fixed height onto a
trampoline
If standing up requires more effort than lying down then
one’s pulse standing up will be faster than one’s pulse
lying down
Object bounce count
Golf Ball – 4 bounces medicine ball-7 bounces
baseball – 5 bounces
Warm-up 37
O Independent variable, constant, control
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dependent variable - I am testing to see
which ball bounce the most times
The same trampoline
The one that got bounced on concrete
The height the ball bounces
The height I drop the object from
The type of ball
Warm-up 38
O Define Potential and Kinetic energy
O Identify the following as potential or kinetic
O A Stalled car
O A whispering creek
O A book falling
O Apple on teacher’s desk
Warm-up 39
O Draw the following and answer the question
a
ac
c
O Where is the greatest potential energy? Where is the
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least potential energy ?
b
Where is the greatest
kinetic energy?
Where is the least kinetic energy?
Where does kinetic turn to potential?
Where does potential turn to kinetic?
Warm-up 40
O Pendulum
Warm-up 41
O How does mass affect the kinetic energy of
two different objects travelling the same
speed?
Warm-up 42
O List 7 types of energy and tell what each one
means in your own words.
Warm-up 43
O S8P2 b. Explain the relationship between kinetic and
potential energy
O Explain if the statements these children are making
are correct. What is the relationship between kinetic
and potential energy . Can one form of energy turn
into another? Explain your answer in 5 or more
sentences.
Warm-up 44
O
Write an acrostic poem using :
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O
O
O
O
O
O
O
O
O
E
N
E
R
G
Y
F
O
R
M
S
Warm-up 45
O Identify the type of energy shown
O Bird flying
O Toaster
O Baked potato
O Fission
O Candle (unlit) on the counter
O Stretching a rubber band
O Hot tub
O A lamp that is turned on
Warm-up 46
O Name alternative energy resources and how
we use them.
Warm-up 47
O Define the Law of conservation of energy
and give an example that illustrates this law.
Warm-up 48
O List the energy chain in an alarm clock?
Warm-up 49
O S8P2 – Transformations of energy
O Explain the transformation in terms of law of
conservation of energy. Choose one of the following
scenarios and write at least 5 sentences:
1. Suppose you see a car going down the street at a
constant speed. Suddenly, the driver slams on the
brakes. The car comes to a sudden stop. Where did
the energy go?
2. You roll an eight ball across a pool table. It hits the
cue ball and the cue ball starts to move and the 8 ball
stops. Why?
Warm-up 50
O Think about what happens when you touch something like
a hamburger. The thermal energy from the hamburger is
shared with your hand. Your hand feels warmer than before
it touched the hamburger. The hamburger loses some of its
thermal energy so it becomes cooler. The energy from the
hamburger is transferred to your hand. Thermal energy is
always shared between objects that touch each other, like
your hand and a hamburger. The thermal energy always
travels from the item with the most thermal energy to the
item with the least. This process is called conduction.
O Prompt: You took a can of soda out of the refrigerator.
After holding the can for a minute, how does your
hand feel? Explain what happened to cause this. Use
what you know about heat, as well as details from the
paragraphs above, to support your answer.
Warm-up 51
O Describe the three ways heat can be
transferred and give an example of each.
Warm-up 52
O Identify the following heat transfers as
conduction, convection or radiation
1. Microwave ‘
2. Running across hot sand
3. spaghetti sauce being heated
4. A cat sitting in the Sun that is shining through
a window
O 5. A cold weather front moving in
O 6. A snowball melting in your hand
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Warm-up 53
O Describe how heating a pot of soup on the
stove involves conduction, convection and
radiation. You must explain all three forms.
Warm-up 54
O Why do we use insulation in our houses?
O Name two objects in this room that are conductors?
O Name two objects in this room that are insulators?
Insulator or Conductor?
Gold
Cotton
Styrofoam cups
Coffee mug
Plastic
Aluminum
Warm-up 55
O Describe the kinetic energy in an object that
is 104 degrees compared to the kinetic
energy of an object that is 32 degrees.
O In a hot air balloon, air is heated by a flame.
Explain how this enables the balloon to float
in the air.
Warm-up 56
O If you were trying to move a boulder out of
the road and you were using a lever to do so,
would it be easier to move if the fulcrum was
closer to the load/boulder or further from
the boulder? Explain.
Warm-up 57
Check all simple machines that make up the compound
machine listed.
Compound Inclined
Machine
plane
Scissors
Wheelbarrow
Axe
Wheel and Lever
axle
wedge
Warm-up 58
O List an example of each type
of lever. Draw the 3 different
types of levers and identify
the fulcrum, input and
output.
Warm-up 59
O Use one paragraph to describe how you use
simple machines every day. Give examples
of the simple machines that you utilize and
how they assist you in every day life.
Warm-up 61
O Explain the difference between speed and
velocity.
Warm-up 61
O Write a formal description of your position in
the classroom using a reference point and a
set of reference directions. For example, I
sit three tables to the left of Mrs. Pursley’s
desk. Then write a similar description for
your home and also for an object in your
room.
Warm-up 62
If a student rides her bike on a straight road and does
not speed up or slow down, she is traveling with a
a. Constant acceleration
b. Constant velocity
c. Positive acceleration
d.
negative acceleration
A force
a. Can cause an object to speed up, slow down, or
change direction
b. Is expressed in Newtons
c. Is a push of a pull
d. All of the above
Warm-up 63
O Describe the relationship between motion
and reference point
Warm-up 64
O Explain how it is possible to be accelerating
and traveling at a constant speed.
Warm-up
O Have your review sheet out and FINISH IT!!!
Use the old book to answer questions 24-30
Warm-up 65
O What does the magnitude of the gravitational
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force between two bodies depend on ?
A) the velocity of the bodies and the friction
between them
B) the size of the bodies and their position
relative to earth
C) the weight of the bodies and how quickly they
are moving
D) the mass of the bodies and the distance
between them.
Warm-up 66
O A short time after jumping from and
airplane, a skydiver reaches a constant
speed. Which of the following statements
about the skydiver is true?
A) the skydiver is accelerating toward the
ground at 9.8m/s2
O B) an unbalanced force acts on the skydiver
O C) No unbalanced forces act on the skydiver
O D) Air resistance does not affect the
skydiver’s speed
Warm-up 67
O What is the net force of the following
scenarios?
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5N
10N
25N
17N
15N
15N
Warm-up 68
O An object moving in a straight line with a
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constant speed has no unbalanced forces acting
on it. How will the object’s motion change over
time?
A) the object will gradually slow down and come
to a stop
B) Centripetal force will cause the object to go
into a circular orbit
C) The objects motion will remain unchanged
D) The object will accelerate and change
direction.
Warm-up 69
O Which scenario has the greatest
gravitational pull
Warm-up 70
O Write the definition of a waveO Do waves carry energy? Give me an
example of how you know.
Warm-up 71
O Why can supernova explosions been seen
but not heard on earth?
Warm-up 72
O Which of the following results in more
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energy in a wave?
A) smaller wavelength
B) a lowerfrequency
C) a shallower amplitude
D) a lower speed
Warm-up 74
O Draw and label the following parts of a
transverse wave: Crest, trough, amplitude,
frequency, wave at rest, wave height,
wavelength.
Warm-up 75
Name the two types of mechanical waves :
1
2
What type of wave is this? IIIIIIII I I I I I I IIIIIII
Label the compression and rarefactions
Warm-up 76
O During constructive interference,
O A. the amplitude increases
O B. the frequency decreases
O C. the wave speed increases
O D. All of the above
O So would the volume or pitch be affected by
constructive interference?
Warm-up 77
O Jeff and Lyle were fishing in the ocean. Jeff bet Lyle
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that the ocean waves moving quickly by the floating
boat would not carry away a piece of bread that Jeff
threw into the water. Which of the following is a valid
explanation?
A. ocean waves are surface waves which move the
particles of their medium in circles
B. Ocean waves are longitudinal waves, which moves
the particles of their medium back and forth
C. Ocean waves are combination waves, which can
move particles along the ocean surface
D. Ocean waves are transverse waves which move
the particles of their medium up and down.
Warm-up 78
O List the electromagnetic waves in order of
lowest frequency to highest.
O What is the speed of the electromagnetic
waves?
Warm-up 79
O Chris took a glass out of the freezer and it
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quickly frosted over. He and his friend were
discussing if it was translucent or transparent.
Chris said traslucent and Luke said transparent.
Who is right.
A. Chris bc you can see through it
B. Luke bc not all light goes throughand some is
scattered
C. Both bc they both allow light through it
D. Chris bc not all light goes through some is
scattered
Warm-up 80
O Explain how we see objects and colors in
terms of wavelengths.
Warm-up 81
O Does a magnet exert a force on another
magnet?
O Draw the magnetic fields of two magnets
with opposite poles facing each other
O Draw the magnetic field of two magnets with
the same poles facing each other
Warm-up 82
O Draw and label the parts of a circuit. Make
it have 2 resistors.
Warm-up 83
O In your electromagnet lab, how many paper
clips in a row could you pick up with the first
trial?
O How did you make your magnet stronger?