1 st Semester 7 th Grade Review. Periodic Table and Atoms.

11stst Semester 7 Semester 7thth Grade Review Grade Review

Periodic Table and AtomsPeriodic Table and Atoms

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

3. Answer3. Answer

Chemically CombinedChemically Combined

NaCl : Sodium Chloride

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

7. Draw any compound7. Draw any compound

2 Oxygen2 Oxygen

1 Carbon1 Carbon

7. Answer7. Answer

Carbon DioxideCarbon Dioxide

COCO22

oxygenOxygen

8. Draw any element8. Draw any element

8. Answer8. Answer

OO22

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

AnswerAnswer

PhotosynthesisPhotosynthesis

http://www.mbgnet.net/bioplants/food.html

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.

AnswerAnswer

Solar energy from SunSolar energy from Sun

Transferred intoTransferred into

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

9. Answer9. Answer

OO22

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

10. Answer10. Answer

COCO22

HH22OO

CC66HH1212OO66

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

11. Answers11. Answers

UnbalancedUnbalanced

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



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?


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?


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


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?


RibsRibs

http://en.wikivisual.com/index.php/Human_rib_cage

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


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.


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.


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?


RespiratoryRespiratory

CirculatoryCirculatory

MuscularMuscular

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?


Mucus LiningsMucus Linings

Cecilia (hairs)Cecilia (hairs)

30. What forces push the 30. What forces push the blood through your blood blood through your blood

vessels?vessels?


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


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


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?

AnswerAnswer

BeakerBeaker

Type of Water and Type of Water and amount of wateramount of water

44. What was the 44. What was the independent variable?independent variable?

AnswerAnswer

TimeTime

45. What was the 45. What was the dependent dependent variable?variable?

AnswerAnswer

Appearance of tabletAppearance of tablet

46. Which statement(s) 46. Which statement(s) explain(s) the explain(s) the

procedures of the procedures of the experiment?experiment?

AnswerAnswer


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:

AnswerAnswer

Chemical to MechanicalChemical to Mechanical

AnswerAnswer

–radiant energy to radiant energy to mechanical energy:mechanical energy:

AnswerAnswer

–mechanical energy to mechanical energy to electrical energy:electrical energy:

1 st Semester 7 th Grade Review. Periodic Table and Atoms.

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Transcript of 1 st Semester 7 th Grade Review. Periodic Table and Atoms.