1 1 st st Semester 7 Semester 7 th th Grade Grade Review Review
Dec 16, 2015
1. Identify the location of the 1. Identify the location of the following subatomic particles:following subatomic particles:
A: protons and neutronsA: protons and neutrons
B: electronsB: electrons
1. Answer1. AnswerA: in the nucleusA: in the nucleus
B: in the other rings, electron B: in the other rings, electron CloudCloud
Nucleus
Rings
2. Look at your periodic table. Name 2. Look at your periodic table. Name one atom that will have similar one atom that will have similar
properties to the element listed:properties to the element listed:
A: Sodium B: Silver C: Neonhttp://chemistry.about.com/od/periodictableelements/a/elementphotos.htm
2. Answers2. Answers
A: PotassiumA: Potassium
B: GoldB: Gold
C: HeliumC: Helium
(These are one example of each)(These are one example of each)
3. A compound is composed 3. A compound is composed of two or more elements that of two or more elements that are __________ combined.are __________ combined.
http://www.saltinstitute.org/15.html
4 – 6 Use Chart on Handout4 – 6 Use Chart on Handout to help answer. to help answer.
GasGas AtomicAtomic
NumberNumber
AtomicAtomic
MassMass
Melting Melting
PointPoint
Boiling Boiling
PointPoint
LithiumLithium 33 77 181181 13421342
SodiumSodium 1111 2323 9898 883883
PotassiumPotassium 1919 3939 6464 759759
RubidiumRubidium 3737 8585 3939 688688
4. What is the relationship 4. What is the relationship between the atomic number between the atomic number
and atomic mass of the and atomic mass of the above Alkali Earth Metals?above Alkali Earth Metals?
4. Answer4. Answer
As the atomic number goes As the atomic number goes up the atomic mass goes upup the atomic mass goes up
5. What is the 5. What is the relationship between relationship between atomic number and atomic number and
melting point for these melting point for these elements?elements?
5. Answer5. Answer
The lower the number of The lower the number of protons (atomic #) the protons (atomic #) the higher the melting pointhigher the melting point
6. Where would the 6. Where would the information for Cesium fit information for Cesium fit
onto this table?onto this table?
6. Answer6. Answer
At the bottom of the At the bottom of the chart, below Rubidiumchart, below Rubidium
Use the following symbols to create Use the following symbols to create a model as listed below:a model as listed below:
SodiumOxygen
Carbon Helium
Use the following chemical equation Use the following chemical equation to answer the questions which to answer the questions which
follow:follow:
CO2 + H2O + Energy C6H12O6 + O2
CO2 + H2O + Energy C6H12O6 + O2CO2 + H2O + Energy C6H12O6 + O2
The equation above The equation above demonstrates the process of demonstrates the process of
The function of The function of photosynthesis is to take photosynthesis is to take __________ out of the __________ out of the atmosphere and provide atmosphere and provide ______________ to living ______________ to living things.things.
AnswerAnswer
Take carbon dioxide out of Take carbon dioxide out of atmosphereatmosphere
Put Oxygen back into Put Oxygen back into atmosphereatmosphere
During photosynthesis, During photosynthesis, ________________ ________________ energy from the sun is energy from the sun is transformed into transformed into ________________ ________________ energy.energy.
9. Which part of this 9. Which part of this equation is considered to equation is considered to
be an element?be an element?
CO2 + H2O + Energy CO2 + H2O + Energy C6H12O6 + O2 C6H12O6 + O2
10. Which part of this 10. Which part of this equation is considered to be equation is considered to be
a compound?a compound?
CO2 + H2O + Energy CO2 + H2O + Energy C6H12O6 + O2 C6H12O6 + O2
11. Change in motion is 11. Change in motion is caused by an caused by an
________________ force.________________ force.
http://www.glenbrook.k12.il.us/gbssci/phys/mmedia/newtlaws/cci.html
Identify the following Identify the following examples as either kinetic examples as either kinetic
or potential energy.or potential energy.
http://www.usoe.k12.ut.us/curr/science/sciber00/8th/forces/sciber/potkin.htm
Kinetic or PotentialKinetic or Potential
12: A book sitting on a desk12: A book sitting on a desk
13: Water moving through 13: Water moving through water hosewater hose
14: A dish on a table14: A dish on a table
15: A person Sleeping15: A person Sleeping
AnswersAnswers
12: potential12: potential
13: kinetic13: kinetic
14: potential14: potential
15: potential15: potential
http://www.usoe.k12.ut.us/curr/science/sciber00/8th/forces/sciber/potkin.htm
16. If we were to describe what is 16. If we were to describe what is happening to you as you sit at your happening to you as you sit at your desk we could say that your body is desk we could say that your body is _______ on the chair and that the _______ on the chair and that the
chair is __________ up on you chair is __________ up on you preventing you from falling through preventing you from falling through
the Earth.the Earth.
16. Answer16. AnswerThe chair is pushing up on youThe chair is pushing up on you
You are pushing down on the You are pushing down on the chairchair
Example of a Example of a
Balanced ForceBalanced Force
17. Which of Newton’s three laws 17. Which of Newton’s three laws describes the motion of a water describes the motion of a water
sprinkler when the direction of the sprinkler when the direction of the sprinkler is the opposite of the flow sprinkler is the opposite of the flow
of water?of water?
17. Answer17. Answer
33rdrd Law of Motion Law of Motion
For every action there is For every action there is an equal and opposite an equal and opposite reactionreaction
18. Which of Newton’s laws 18. Which of Newton’s laws describes the behavior of your describes the behavior of your book sitting on the table until book sitting on the table until
someone moves it?someone moves it?
18. Answer18. Answer
11stst law of Motion law of Motion
An object at rest will stay at rest, An object at rest will stay at rest, an object in motion will stay in an object in motion will stay in motion unless acted on by an motion unless acted on by an unbalanced forceunbalanced force
http://www.glenbrook.k12.il.us/gbssci/phys/mmedia/newtlaws/il.html
19. Give at least two examples of the 19. Give at least two examples of the following types of simple machines:following types of simple machines:
A: Inclined PlaneA: Inclined Plane
B: PulleyB: Pulley
C: WedgeC: Wedge
D: Wheel and AxleD: Wheel and Axlehttp://www.fi.edu/pieces/knox/automaton/wheel.htm
19. Answer19. Answer
A: rampA: ramp
B: blinds, water from well, B: blinds, water from well, bike chain around gearbike chain around gear
C: Ax, knifeC: Ax, knife
D: car tiresD: car tires
22. Which bone(s) are 22. Which bone(s) are responsible for responsible for
protecting your lungs?protecting your lungs?
23. What type of muscles, voluntary or 23. What type of muscles, voluntary or involuntary, or cardiac, control the following involuntary, or cardiac, control the following
functions:functions:
A: Muscle found in the heartA: Muscle found in the heart
B: Muscle that move bonesB: Muscle that move bones
C: Muscles that control major functions of C: Muscles that control major functions of bodybody
D: Muscles that control breathing when D: Muscles that control breathing when you are not thinking about breathingyou are not thinking about breathing
E: Muscles that are found in the stomachE: Muscles that are found in the stomach
23. Answer23. Answer
A: CardiacA: Cardiac
B: VoluntaryB: Voluntary
C: InvoluntaryC: Involuntary
D: InvoluntaryD: Involuntary
E: InvoluntaryE: Involuntary
24. What is the primary function of 24. What is the primary function of the following organs…the following organs…
A: Large IntestineA: Large Intestine
B: Small IntestineB: Small Intestine
C: StomachC: Stomach
D: HeartD: Heart
E: LungsE: Lungs
F: AlveoliF: Alveoli
24. Answer24. AnswerA: To remove excess liquid & pass on A: To remove excess liquid & pass on wastewaste
B: To absorb nutrientsB: To absorb nutrients
C: To mix up foodC: To mix up food
D: To pump blood through out the bodyD: To pump blood through out the body
E: To give fresh Oxygen to body, E: To give fresh Oxygen to body, remove Carbon Dioxideremove Carbon Dioxide
F: Air sacs in lungs that store and F: Air sacs in lungs that store and release oxygenrelease oxygen
25. List, in order, the sequence 25. List, in order, the sequence of organs through which food of organs through which food
passes after it enters your passes after it enters your mouth.mouth.
25. Answer25. Answer
Mouth to Mouth to Esophagus to Esophagus to stomach to small stomach to small intestine to large intestine to large intestine to intestine to rectum to anusrectum to anus
26. Briefly explain how 26. Briefly explain how nutrients that are processed nutrients that are processed by the digestive system are by the digestive system are able to get to all of the body able to get to all of the body
cells.cells.
26. Answer26. Answer
The nutrients are absorbed The nutrients are absorbed in small intestine and in small intestine and transferred to blood then transferred to blood then goes to other parts of body goes to other parts of body through blood vessels.through blood vessels.
27. How do the skeletal, 27. How do the skeletal, muscular, and muscular, and
circulatory systems circulatory systems work together so that work together so that
you can enjoy you can enjoy movement?movement?
27. Answer27. AnswerSkeletal- Gives Skeletal- Gives shapeshapeMuscular- allows Muscular- allows movementmovementCirculatory- oxygen Circulatory- oxygen travels in blood to travels in blood to all cells in the bodyall cells in the body
28. Which three systems 28. Which three systems must work together to must work together to
bring oxygen to your body bring oxygen to your body cells?cells?
29. Which structures in 29. Which structures in your respiratory system your respiratory system
are responsible for are responsible for filtering dust, pollen and filtering dust, pollen and other materials of the air other materials of the air
before it reaches your before it reaches your lungs?lungs?
30. What forces push the 30. What forces push the blood through your blood blood through your blood
vessels?vessels?
30. Answer30. Answer
Heart PumpingHeart Pumping
–Contraction of the Contraction of the ventricles pushing the ventricles pushing the blood out of the heartblood out of the heart
31: Identify the following examples 31: Identify the following examples as being a response to either an as being a response to either an
internal or external stimuliinternal or external stimuli
A: Getting a blister on your heel from A: Getting a blister on your heel from new shoesnew shoes
B: Sneezing after inhaling dustB: Sneezing after inhaling dust
C: Running a fever when you are sickC: Running a fever when you are sick
D: Getting a sunburn form being D: Getting a sunburn form being outside all dayoutside all day
31. Answer31. Answer
A: externalA: external
B: InternalB: Internal
C: InternalC: Internal
D: ExternalD: External
Laboratory Equipment Laboratory Equipment and Units of and Units of
Measurement:Measurement:List the type of equipment that would be List the type of equipment that would be
used to measure the following or quantities:used to measure the following or quantities:
32-3432-34
32. The volume of an amount of 32. The volume of an amount of water water ____________________________________________
33. The volume of a box 33. The volume of a box __________________________________________
34. The mass of a rock 34. The mass of a rock ______________________ ______________________
32-34 Answers32-34 Answers
32. Beaker / Graduated Cylinder32. Beaker / Graduated Cylinder
33. Ruler33. Ruler
34. Spring Scale34. Spring Scale
List the units of measurement that List the units of measurement that would be used to measure the following would be used to measure the following
distances:distances:
35. The length of a pencil tip ________________35. The length of a pencil tip ________________
36. The length of a book _____________________36. The length of a book _____________________
37. The length of a table in the cafeteria 37. The length of a table in the cafeteria ______________________________________________
38. The distance from Houston to Dallas 38. The distance from Houston to Dallas __________________________________
39. The distance from Earth to the Moon 39. The distance from Earth to the Moon ______________________________________
40. The distance from Earth to a star named Alpha 40. The distance from Earth to a star named Alpha Centauri ____________Centauri ____________
35 – 40 Answers35 – 40 Answers
35. mm35. mm
36. in /cm36. in /cm
37. feet / meters37. feet / meters
38. miles / kilometers38. miles / kilometers
39. light year39. light year
40. light year40. light year
Experimental Design:Experimental Design:Read the following laboratory scenario. Use the Read the following laboratory scenario. Use the information to answer the questionsinformation to answer the questions
(1)In a laboratory, a group of students observed an Alka Seltzer© tablet. (2) It was round, white, and had a mass of 5g. (3) Students wanted to find out whether the tablet would react faster if the whole tablet was placed in water or if it would react faster if it was crushed first. (4) The students crushed an Alka Seltzer tablet and placed it in one beaker and a whole tablet in another beaker. (5) Next they added 10 mL’s of water to each beaker. (6) Both tablets bubbled when water was added. (7)One student was responsible for recording how long it took the samples to begin reacting and another student recorded the duration of the reaction. (how long the seltzer and water continued to react) (8) This procedure was repeated several times and recorded in a data table.
41. Which statement identifies 41. Which statement identifies the physical properties of the the physical properties of the
Alka Seltzer©?Alka Seltzer©?
AnswerAnswer
Statement 2Statement 2
It was round, white, and had It was round, white, and had a mass of 5g.a mass of 5g.
42. In which statement do 42. In which statement do students identify the students identify the
experimental problem experimental problem they will test? _____they will test? _____
AnswerAnswer
Statement 3Statement 3
Students wanted to find out Students wanted to find out whether the tablet would react whether the tablet would react faster if the whole tablet was faster if the whole tablet was placed in water or it is would placed in water or it is would react faster if it was crushed firstreact faster if it was crushed first
43. What was/ were the 43. What was/ were the control(s) in the control(s) in the
experiment?experiment?
46. Which statement(s) 46. Which statement(s) explain(s) the explain(s) the
procedures of the procedures of the experiment?experiment?
AnswerAnswer
Statement 4Statement 4
The students crushed an The students crushed an Alka-Seltzer Tablet and Alka-Seltzer Tablet and placed it in one beaker and placed it in one beaker and a whole tablet in another a whole tablet in another beaker.beaker.
47. Which statement 47. Which statement describes a physical describes a physical change to the Alka change to the Alka Seltzer© tablet?Seltzer© tablet?
AnswerAnswer
Statement 4Statement 4The students crushed an The students crushed an Alka-Seltzer Tablet and Alka-Seltzer Tablet and placed it in one beaker and placed it in one beaker and a whole tablet in another a whole tablet in another beaker.beaker.
48. Which statement 48. Which statement describes a chemical describes a chemical change to the Alka change to the Alka Seltzer© tablet?Seltzer© tablet?
AnswerAnswer
Statement 4Statement 4The students crushed an The students crushed an Alka-Seltzer Tablet and Alka-Seltzer Tablet and placed it in one beaker and placed it in one beaker and a whole tablet in another a whole tablet in another beaker.beaker.
List the steps and explain how energy List the steps and explain how energy is transformed fromis transformed from
– chemical energy into chemical energy into mechanical energy:mechanical energy:
– radiant energy to mechanical radiant energy to mechanical energy:energy:
– mechanical energy to mechanical energy to electrical energy:electrical energy: