Please consult first two images for understanding the various methods of separation. Next images are just examples of flow charts. If you're not building a model, your picture of a flow chart ( picture ) should look something like these examples. But you can definitely come up with your own unique idea as well . Be creative!
13 April
For ESL Students:
Students are going to write Two Descriptive paragraphs:
- Person - Describe a person you know ( For example: Mother, Father, Sister, Brother, Best Friend, Classmate, etc. ). Include the following - name, appearance, character, what is special about her/him, what is the role/job, what you like about her/him, etc.
- House - Describe your house - Area ( where it is ), Type ( size, floors, etc. ), Colour , Number of rooms, Furniture, Things you like /dislike about your house and your feelings about it
- Remember, a paragraph has three parts - Topic sentence ( tells the main idea ), Detail sentences ( explain and support the main idea ), Conclusion sentence ( reminds of the main idea )
- You can watch You Tube as well to understand better ( ` Topic sentence and paragraph - Easy writing steps- ESL color code- by Justin Time English Clip ' )
- Writing Checklist - Correct format, Capital letters, `period' , write short sentences, add transitional words ( for example - `And ', `But', ` In addition', ` Moreover', `Furthermore ', `Another', etc. )
- submit your completed work ( email - renuka.mall@tdsb.on.ca )
13 April
Grade - 7 Science Students
This week students will do `The STEM LAB. AND REPORT'. Students can choose any ONE of the activity:
- GET SERIOUSLY EGG-CITING: Students will follow scientific method and scientific inquiries in this activity. Purpose/Question: What will happen if we submerge an egg in Vinegar for 24-36 hours?
- Hypothesis: Before you perform this experiment, make smart scientific guess/prediction
- Materials needed: 1. A raw egg 2. A plastic /glass cup 3. Vinegar (enough to submerge the whole egg ) 4. Food colour/dye ( Optional )
- METHOD: Perform, Observe And Analyse - Observe your egg carefully. Tell how your egg Touch/Feel, Scent/Smell, and Appearance/See before you submerge in Vinegar. Now, carefully place your egg at the bottom of your cup. Do not break it. Pour your vinegar over the egg and make sure it is completely submerged in the vinegar.
- OBSERVATION: After 24-36 hours in Vinegar, tell how does egg feel, smell and appears now.
- CONCLUSION: Tell whether the prediction you made before you performed this experiment is correct or not. Explain it.
- Submit your Lab. report to me under proper headings ( Purpose, Hypothesis, Method, Observation and Conclusion )
- SECOND CHOICE FOR THE STUDENTS:
- Students can choose to do experiment ( Chromatography ) by following the scientific method.
- CHROMATOGRAPHY: The separation of a mixture by passing it in solution through a medium in which the components move at different rates.
- Purpose: To determine which colours of ink move the fastest.
- Hypothesis: Make a smart scientific guess ( which colour will be carried farthest )
- Materials needed: Water-soluble black marker, colourless drinking glass/beaker, 10 cm strip of filter paper ( Paper Towel ) and tap water.
- Method: Draw a line in pencil with a ruler 2 cm from one end. Place a dot of ink from a black marker on the middle of the line. Fill a glass with water to a depth of 1 cm. Place the filter strip in the water with the dot about 1 cm above the water, and tape the strip to a pencil.
- Observation: Answer the following questions - What happens to the black dot on the paper after 1 min.? After 5 min.? - Which colour was carried the fastest ? - Which colour travelled the least distance?- Why did the different colours of ink separate and travel different distances ?
- Conclusion: Tell whether your prediction was correct or not.
- Submit your lab. report with proper headings ( purpose, Hypothesis, materials, method, observation and conclusion )
- AFTER you have completed your selected experiment and LAB. report , answer the following question;
- Jason says, " I can separate a solution of sugar and water even though I can't see the different parts of the mixture." Yousif says, " I can only separate a mixture if I can see the different parts." Do you agree with Jason or with Yousif? Explain your answer.
20 April
Grade - 7 Science
Students are going to watch a video:
`How do water treatment plants work?'- Concerning Reality
Optional Video:
Wastewater treatment plant tour- " Flush To Finish" - City of Grand Island
Then, answer the following questions:
1. What is a Sewage?
2. Name three treatments required to purify waste water.
3. What is a Sludge?
4. What happens in the Secondary treatment?
5. What is an Aerobic digestion?
6. Name two disinfectants use to treat waste water.
7. What is an Effluent Release ?
CHECK YOUR UNDERSTANDING:
- Is clear, colourless, and odourless water always safe to drink? Explain.
- Read the statement below. Do you agree or disagree? Explain.
" It doesn't matter what humans put in the water supply. Water treatment processes clean out all the trash and pollution."
Submit your work by May 1
26 April
Grade - 7 Science
Homework Reminder - Thanks to the students who have already submitted their `Separating System ' and Science lab. report. If you have not submitted your work , please do so by tomorrow i.e. 27 April. Also, water treatment plant assignment is due on 1 May.
27 April
Grade - 7 Science
Students are going to start HEAT unit. For this, they need to: Google - Nelson Science and Technology Perspectives 7 PDF - Click ` Online preview - Heat in the environment ' download
- Under table of contents, Go to Chapter 7 ( Heating and Cooling ), and then go to section 7.1 - ` Warmth and Coldness '
- Read pages 10 to 12
Then answer, Questions 1 to 5 given under ` Check Your Understanding '. You can submit your work through Google Docs or send me image of your completed work.
DUE DATE: 8 May
5 May
Grade - 7 Science
Students are going to ` PAUSE ' , ` REFLECT ' and `RECONNECT ' this week. Everyone is at ` PAUSE ' that means:
- Students are given an opportunity to complete any pending work. This means you need to complete - ` `Separating System ', `Science Lab. and Report ' , ` Water Treatment Plant ' assignment and ` Heat ' unit's first assignment ( Nelson Book ). If done, you need to hand-in your completed work through Google DOCS/Email/Image.
- REFLECT and RECONNECT ( OPTIONAL ):
If students have completed all their assignments, they can do some reflection and reconnection with themselves and their families. Try to Start and End your day with meditation, keeping your thoughts positive, counting your blessings, and believing that something is amazing around the corner and it has your name on it. Don't forget to Breathe IN( through one nostril ) and Breathing OUT ( through another nostril ) exercise both in the morning and at night time at least 10 times. This yoga exercise will strengthen your lungs and send burst of oxygen into your brain. Also, turn-off all the electronics half an hour before bed.
- You can watch inspirational videos:
YouTube - ` You can do it '- One of the best motivational videos ever created for students, success and studying ( Motivation2 study )
- ` No excuses in 2020 '- Best Study Motivation ( M2S )
- ` The Great Realisation ' - probably Tomfoolery
Reconnect: GAME
Take `Thankfulness Challenge ' - Each family member has a partner and everyone has one minute to run around and find a `gift ' for the other family member and put it in a gift bag. When the time goes off, family members return with their ` gift ' and the receiver of the gift has to take it out, show the family and say thank you and something complimentary to the giver or about the gift. It's fun watching siblings thank each other for dirty socks or a wet towel.
Stay Safe and Healthy
" Do what you can, with what you have, where you are. "- Theodore Roosevelt
11 May
Grade - 7 Science
Students will continue with HEAT unit. For this week's assignment, you will go to Google, search for Nelson - Science and Technology perspective Grade 7 - Download Centre, click on PDF Online preview - Heat in the Environment, go to Chapter 7 under table of content , click on 7.3 - Kinetic Energy, Heat, and Temperature, scroll down to Page 15. Then, read pages 15 to 17 and answer questions 1to 5 given on p.17 under `Check Your Learning '. You can submit your work through Google DOCS/image etc. This work is due on 20 May.
For ESL Students:
I sent email to every one with 2 attachments. Please open these attachments, answer the questions and then email your answers. Complete your work by 15 May.
19 May
Grade - 7 Science
This week students will read page 282 to 284 from Pearson book. This book is free online. To access this book, follow the following steps: Google - Sciencesource.ca , click on `Investigating Science and Technology 7' ( choose your text book ), click on ` log in (2 under home ) sciencesource 7 , if screen log in shows up ( username- hilltop_science and password- science ), click on eBook, click `Investigating Science and Technology eBook' ( open PDF ), click on unit D chapter 10 , `Heat in the environment ', section 10.1- Energy Transformation and then read p.282 to 284.
Also, watch a video by Bill Nye - The Science Guy Energy ( YouTube: Scott Thrope )
THEN, test your understanding by answering the following multiple choice questions ( Choose the correct answer ):
1. Energy is
a. when the surfaces of two objects rub against each other.
b. the ability to do work.
2. What are the two main types of energy?
a. Chemical and thermal
b. Electric and Nuclear
c. Potential and Kinetic
3. Thermal energy is
a. Kinetic
b. Potential
c. Both Kinetic and Potential
4. A type of Potential energy that is associated with objects that can be stretched or compressed is called:
a. Mechanical energy
b. Elastic Potential energy
c. Gravitational Potential energy
5. Visible Light, ultraviolet, radiation and microwaves are all good examples of:
a. Electrical energy
b. Nuclear energy
c. Electromagnetic energy
6. The total energy of the particles in an object is Thermal energy
a. True
b. False
7. A car moving, a frog leaping, and sounds that are made are all examples of what kind of energy
a. Chemical
b. Thermal
c. Electrical
d. Mechanical
8. Which of the following are good examples of elastic potential energy?
a. Rubber band
b. Bow
c. Bungee cord
d. All of the above
9. Mechanical energy can be Potential or Kinetic:
a. True
b. False
10. As height increases, so does
a. Thermal energy
b. Kinetic energy
c. Potential energy
d. Mechanical energy
Submit your answers by email/Google Docs etc. by 25 May.
26 May
Grade - 7 Science
This week students are going to study about Heat transfer- Conduction, Convection and Radiation. You will be using textbook - PEARSON - Investigating Science and Technology. For this, you will google - ScienceSource 7, click on Unit D HEAT - ScienceSource.ca, click on chapter 10, under chapter 10, click on `please login ( username - hilltop_science ; Password - science ) , click on eBook on the left hand side, click on `Investigating Science and Technology 7eBook, choose your file, go to Unit D - HEAT IN THE ENVIRONMENT - Chapter 10 , PDF appears at the bottom of the screen, press open, Unit - Heat In The Environment appears, scroll down to section 10.4 - Heat Transfer and then read p. 301 to 305
Watch Videos:
- Google - videos on heat transfer, click on ` Heat transfer - Conduction, Convection and Radiation '- uploaded by The organic chemistry tutor
- Google - Video on Heat , Temperature and Energy - YouTube ( DMcC )
- Video - Bill Nye the science Guy S2E 10 Heat - Esther Patterson
After, you have read text book pages and watched videos ( if you find difficulty in accessing text book, watch at least the videos ) answer the following multiple choice questions :
1. What heat transfer happens when you burn your finger by touching a fire?
a. Radiation
b. Convection
c. Conduction
2. The rubber or plastic on electrical cords is an example of
a. Insulators
b. Conductors
c. Radiators
3. When a frying pan is touching a stove that is on, what heat transfer is happening?
a. Conduction
b. Radiation
c. Convection
4. Warm air rises and the cool air sinks demonstrates this type of heat transfer.
a. Convection
b. Conduction
c. Radiation
5. Heat transfers from an area of ________ temperature to an area of __________ temperature.
a. high to low
b. high to high
c. low to high
6. You get sunburned due to ____ from the sun.
a. Conduction
b. Radiation
c. Convection
7. When molecules heat up they move at a ______ speed.
a. Slower
b. Faster
c. Same
8. The heat from a campfire warming you up is an example of what type of heat transfer?
a. Convection
b. Conduction
c. Radiation
9. Which of the following is an example of radiation?
a. Sea breeze
b. Sunlight warming the earth
c. Land breeze
10. What is the process by which hot material rises and cooler material sinks?
a. Radiation
b. Convection
c. Conduction
Submit your answers through email/Google Docs, etc. by 1 June.
1 June
Grade - 7 Science
This week we will start with ` Structures - Form and Functions ' unit. A structure is something made up of parts that are together in a particular way for a specific purpose or purposes. Every structure has a FORM and FUNCTION. The FORM is the basic shape of the structure; the FUNCTION is the job that the structure does.
Some structures are natural ( trees, rocks, flowers, you ) and some are manufactured ( airplanes, vases, picture frames, bridges ). Manufactured structures are designed with their FORMS and FUNCTIONS in mind. Designers choose the materials to make each structure and decide how to construct it. Some structures are designed to be Ergonomic. It is the science of designing equipment that people can use more efficiently and safely. Ergonomic design can help prevent people from getting hurt while performing repetitive tasks. These designs assist people who have physical challenges and can improve quality of life.
Your task for this week is to ` Design a Better School Desk ' with improvements to the FORM ( shape ) so it can perform its Functions better ( in the school ).
Procedure/Task
a. Design your school desk with 5 to 7 unique features/characteristics. You should have at least one feature to assist in any kind of disability. If you want to include chair in your design, please feel free to do so.
b. Consider how well it performs each function the way it is now ( tell what is the function of each feature but don't forget to be realistic ).
c. Send an image ( of your drawing ) of improved school desk designed by you. Don't forget to label your desk !
d. Answer the following question: What do you consider the most important function of your desk? Why?
Submit your work by 8 June through email/Google DOCS etc.
9 June
Grade - 7 Science
Students will continue to do assignments related to Structures. Structures can be classified based on its Function and its construction. They can be classified as Solid, Frame, or Shell structure.
SOLID structures are solid all the way through. It weighs more than a hollow structure of the same size and made of the same material. For example: mountains, dams, sand castles, wax candles, etc.
FRAME structures are made of parts fastened together. The parts are often called Structural components. For example: Your skeleton is a frame structure. Its structural components - your bones, ligaments, and tendons - are joined together. Some other examples are: a bicycle, a tennis racket, spider's web, car, umbrellas, etc.
SHELL structures have space ( hollow ) inside them. They often make good containers. For example: Igloo, milk/juice/eggs carton, clothes, egg shells, etc.
Many structures are combination structures because they are combinations of Shell, Frame, and Solid structures. For example, house. A house is built from Solid ( brick, nails, boards, etc ) structures that are put together to form a Frame. The walls and the roof form a covering around the Frame.
TASK: Building - Solid, Frame, and Shell structures
Structures that have the same function may have very different Forms. For example, every chair is designed to support the weight of a person on it.
Purpose: You will build different forms of chairs to illustrate Solid, Frame, and Shell structures.
Materials needed: Toothpicks and tape/ hot glue/modelling clay OR Straws and tape
Procedure:
1. Sketch three chairs: one that can be classified as a solid structure, one as a frame structure, and one as a shell structure.
2. Build a model of each chair with toothpicks and tape/modelling clay/hot glue Or with straws and tape.
3. Try to build the chairs approximately the same size.
Send the picture of the models created through email/google DOCS, etc.
Answer the following questions:
4. What did you notice about the use of materials when you built solid structure, frame structure and shell structure?
5. Which type of structure was best able to support weight? ( use any kind of material to test it )
Send your answer to these questions along with picture of these models through email/ Google Docs, etc by 15 June.
16 June
Grade - 7 Science
Students will continue to work on STRUCTURE unit. They are going to focus on FORCES that can act on structures. A FORCE is any push or pull. Forces act on all structures. Whether the structure is small or large, it must be designed and built to withstand the forces it will face. If the structure is not strong enough, it may experience structural failure.
Forces can be classified as EXTERNAL ( wind, gravity ) or INTERNAL ( Compression, Tension, Shear and Torsion ).
An External Force acts on an object from outside the object. GRAVITY is the natural force of attraction between two objects. Gravity constantly pulls structures towards Earth's centre.
Every structure needs to support a LOAD. The total LOAD is the sum of the Static and Dynamic LOADS. The Static Load is the effect of gravity on a structure. The Dynamic Load is the forces that move or change while acting on the structure. For example, take a bridge - forces acting on the bridge include the weight of the bridge ( static load ), as well as dynamic loads ( weight of the car, truck, etc. and the force of the wind ).
INTERNAL Forces are forces exchanged by the objects in the system. They are the force that emanate ( emerge/come out ) from within a system. Depending on the direction in which they act, internal forces can be classified as Compression, Tension, Shear, or Torsion. Compression is a force that squeezes or presses something together. Tension is a force that stretches apart to expand or lengthen. Shear is a force that pushes in opposite directions. Torsion is a force that twists.
After reading the information, do the following multiple choice questions:
1. What is defined as a push or pull?
a. Force b. Motion c. Vector
2. This type of force is an attraction between two objects
a. Contact b. Gravity c. Friction
3. All objects in the universe have a gravitational attraction to each other.
a. True b. False
4. What force holds the planets in motion around the sun?
a. Magnetic b. Gravitational c. Electrical
5. Bend or twist a certain material, by pressing on different parts, in different direction, at the same time. The force you are creating is called
a. Tension force b. Shear force c. Torsion force
6. What force ultimately slows the roller coaster to a stop?
a. Normal b. Friction c. Magnetic
7. A hurricane or tornado is an example of a force that can cause extreme damage to a structure when it acts on the structure, even for a short time. The environmental event is classified as a
a. Live Load b. Dead Load c. Torsion event
Submit your answers through email/Google DOCS by 20 June.
22 June
Grade - 7
We are going to end our school year with STEM Fun activity. This week is a TOWER WEEK. Students are going to build Tower structure using Straws /IndexCards /PlayingCards/Newspapers/plastic cups.
Choose any one material plus tape ( only if required ) AND a family member ( sibling, parent, grandparent, cousin, etc. )/ Neighbours.
Now, compete with a person/group and see who can build the Tallest Tower in a given time ( select 20/30 minutes ).
REMEMBER, strenght of a structure lies in the shapes used in its design. Triangle is a very strong shape and is found in many structures. Squares and rectangles are not as strong as triangles. Three-dimensional triangular prisms and pyramid shapes are also stronger than three-dimensional rectangular prisms. SO, try to keep these shapes in mind when building your Tower structure. All the Best !
Submit the name of the winner- Person/team by 25 June.
