Category Archives: Grade 10 Science

Ecosystems

Part 1 – Scientific models

  1. What models have you used before in science?
  2. Read and explore the article on the use of scientific models.
  3. Two examples of models were used – climate change models and an ecosystem model (fisheries).  Use a categorizing brain frame in your group to discuss the advantages and disadvantages of using one of these two models.

    Category = type of model Subcategory = advantages and disadvantages

  4. Which of your advantages/disadvantages are most significant?  Discuss reasons for your choices.
  5. Pair up with a group that discussed a different model to you.  Compare your brain frames – how were they similar/different.  Add sticky notes to your brain frames to show the highlight the similarities and differences.
  6. Photograph your final comparison and upload it to the Google Classroom stream under the topic of Ecosystems.

 

 Part 2 – Ecosystems

  1. Ecosystems introductory video – review the basics!

  1. Set up a quizlet set for this unit.  Add any terms from the above video that you feel necessary.  You could also add any terms from the work we have done so far on scientific models and the tests we are doing on our bottle ecosystems.
  2. Log into Brainpop with your school account.  Watch the videos on Ecosystems and Food Chains.  Take the quizzes for each video and update your quizlet list with any further relevant terms.
  3. Watch the video on Feedback loops.  While feedback means that one problem can cause many more, it also means that one solution can trigger many others.  Can you think of a real life example of this?  Put your example on the question post you’ll find on the google classroom.
  4.  Ecosystems handout – Read through the information and try the questions.

Biology Text  – ‘Depending on Each Other’ and ‘More About Food Chains’

Part 3 – Pyramids of Numbers, Energy and Biomass

Step 1 – Watch video

Step 2 – Read information on link below and update your quizlet set to include any relevant terms:
Pyramids of numbers, biomass and energy explained

Step 3 – Choose one of the following food chains and, using graph paper, construct a pyramid of numbers.  For the same food chain, sketch a prediction of the pyramid of biomass.  Explain to your neighbour why you chose the shape of your sketch.

Screen Shot 2015-08-26 at 9.42.03 AM

Step 4 – Using the data given below, construct a pyramid of numbers and a pyramid of biomass.  Explain using subject specific vocabulary in a short paragraph, why the two pyramids are not the same shape.

Step 5 – Using information from above and from your text on page 164, try the questions in the handout.  Pyramids handout

Part 4 – Nutrient Cycles

Step 1 – The carbon cycle.  Review the following video.

✍️    In your notebook, draw two carbon cycles.  One without man’s involvement and one with.  Use the following labels on your diagrams to show processes:

photosynthesis       respiration      decomposition       dissolving into ocean     digestion      burying                    combustion                  deforestation

Use this set of labels to show forms of carbon:

Carbon in the atmosphere – carbon dioxide
Carbon underground – fossil fuels
Carbon in plants/animals – carbohydrates,proteins,fats
Carbon in the ocean – dissolved carbon dioxide

Step 2 – The nitrogen cycle

Take a look at the following resources on the nitrogen cycle:
Three versions of the nitrogen cycle

What are the similarities and differences between the three cycles here?   What do you consider are the key parts of the nitrogen cycle?
Make your own version, with labels you consider important.

Step 3 – Review the following resources.  Some have questions for you to try.  Some are things to play with.  Some are videos to watch.  All will be useful for next week’s lesson.

  1. Here is a handout on the N cycle, with a test type question.https://drive.google.com/a/yis.ac.jp/file/d/0B9jybswtSsyIbV83a1JtQUJ0QzFDcUtPNS1XYmM5NUF1R3ZV/view?usp=sharing

    2. The nitrogen cycle in flash! Watch and track the Nitrogen .https://www.classzone.com/books/ml_science_share/vis_sim/em05_pg20_nitrogen/em05_pg20_nitrogen.swf

    3. Video about the Haber-Bosch process of producing ammonia. (Basis of artificial N fertilizers)
    http://ed.ted.com/on/ih59ec5y

    4. Consider the type of source and their bias (Do you use CRAAP? http://libguides.library.ncat.edu/content.php?pid=53820&sid=394505):
    a) Article on the impact of the Haber process from a source interested in organic gardening.
    http://www.the-compost-gardener.com/haber-process.html
    b) Video from a fertilizer maker.
    https://www.youtube.com/watch?v=mZ5OohqO9b4&app=desktop

    5. If you are not so clear on the definitions… What is an artificial vs. an organic fertilizer?http://www.diffen.com/difference/Chemical_Fertilizer_vs_Organic_Fertilizer

 

Grade 10A and 10C Science – Cover

Hey grade 10!  Here are your instructions for this week.

Waters of Crystallisation of Barium Chloride experiment

You have collected your data.  Now we need to process it.  The instructions for this are on the latest post on the google classroom.

Empirical formula

  1. Read pages 114 and 115 of your text.  The books are at the back of the room or you can find them here.
  2. Answer questions 1-4 on page 115 in your note book.
  3. Try the Yenka activity.  First you need to download the files found here.  Then double click on the file ‘Burning magnesium.yka’.  Yenka should start automatically.  Follow the instructions on the screen.

Review

  1. If you have finished everything, you can begin working on these practice test questions.  We have just got theoretical and percentage yield to go which we cover next week!

E-Learning for Snow Day!

Snow from a few years ago. Keep warm everyone!

Snow from a few years ago. Keep warm everyone!

Hi everyone!  It is a winter wonderland out there and I hope that you are all warm and cozy inside your houses.

Please check below for the work you need to do today.  I will be online during your regular class time if you want to ask me any questions.

Grade 11 Chemistry
Grade 10C Science
Grade 7C Science

Grade 11 Chemistry

There will be a test focussing on topic 6/16 but including work from all of grade 11 in two weeks time (see Veracross for details).

Standard Level

You continue to have study hall.  You should use the time wisely to begin to prepare for the upcoming test as this will be the biggest test of your abilities so far.  Make sure you begin to review the work from the beginning of the year.  Study can take the following forms:

  1. Reorganising and rewriting your notes and summaries for each topic
  2. Creating a detailed concept map for each topic
    1. Include links to other topics
    2. Include diagrams where relevant
    3. Include examples where relevant
    4. Use the syllabus to make sure you have included everything you need for the topic.  The full syllabus can be found on my blog or you can use the statements at the beginning of each chapter in your text.
  3. Discuss any concepts or points or ideas that you don’t quite understand.  You can do this by:
    1. Posting the question on google+
    2. Skyping/messaging/google hangouting etc with your peers
    3. Sending me an email
  4. Making flash cards on quizlet or on paper of definitions and diagrams that need memorising.
  5. Memorising them.
  6. Working through calculation problems already done in class or new ones from the links on Google+ community, problems in your text book, problems from trusted sites on the internet (start with those linked to Google+ community)
  7. Only after doing all this should you then go to past paper questions for practice.
Higher Level

We need to finish your experiment.  Please follow the instructions below.

  1. All reaction rates should have been calculated and entered here.  If the table isn’t big enough, make it bigger to fit in your result.
  2. Make your own copy of the spreadsheet.
  3. Use a formula on the spreadsheet to calculate the average for each mixture and put the result in the averages sheet along with the initial concentrations of the three solutions from the instructions.  (Look at the second tab at the bottom of the spreadsheet).
  4. Deduce the rate expression for the reaction and your value for k and post it as a comment under this google+ post.

Grade 10 C

Experiment time!

  1.  Ask your mum for a plastic supermarket shopping bag that you can destroy!
  2. Follow the instruction on the activity sheet found here or on the google classroom.
  3. Answer the questions at the bottom of the sheet.

We will be using this activity as a basis to plan an investigation next week so make sure you get it done!  🙂

Grade 7 C

In order to make sure you can write about your reasons for your hypothesis and to explain your conclusion, you need to know how the ear works.  So today, you can learn about that.  Here is what you need to do:

  1. Log in to BrainPop using your 9 dots thing.
  2. Watch the video called “hearing”
  3. There are three activities for this video.  Complete these ones:
    1. Activity
    2. Vocabulary
    3. You DO NOT need to do the graphic organiser
  4. Do the Classic quiz.  You need to repeat it until you get at least 8/10.

I will be checking that this is complete at the end of the day.  Have fun!

 

G10C – Cover for Friday

Hi Grade 10C

I’m sick and in bed.  Hope you are all feeling well!  Here is your work for today….

  1. Finish all the questions in the booklet I shared with you yesterday about static electricity and charges.
  2. Correct your work by looking here.
  3. Read pages 124 to 127 in your text book and answer the questions.
  4. Work through the questions in this hand out, using the simulation below.
Circuit Construction Kit (DC Only)

Click to Run

(Having trouble getting the simulation to work? Go to system preferences and privacy and security. Click ‘open anyway’).

Have a great weekend!

Electricity Unit – Resources

Unit Overview

 Static Electricity

Electrical Circuits – the basics

Having trouble understanding how circuits work?  Try working through this analogy.  Current, charges, energy, an ammeter, a battery and a lightbulb are all being represented in this analogy.  What is representing each concept or circuit component?


FreeVideoCoding.com

You can use the simulation below to build and explore different circuits.

Circuit Construction Kit (DC Only)

Click to Run

 

Conductors and Insulators

Review your ionic and covalent bonding here.

Review ionic, covalent and metallic bonding here.  You can see what happens when a voltage is applied across a sample.

10A Science

Friday periods 7/8

Test revision

  1. With your partner, have a look at a couple of the concept maps prepared by 10C for our topic of Ecosystems.Recently Added-6Recently Added-7IMG_0279IMG_0280
    1. Are they well organised?
    2. Have they missed anything important?
    3. Have they connected related ideas?
    4. Is there enough detail?
  2. Now have a go on making your own.  You can use the pens and pencils in the stationary drawer.
  3. Once you are happy with it, photograph it and upload it to the google classroom as a class comment.  (I will look at these to make sure they are complete).
  4. Try some practice test questions.  Make sure you check the answers!
    Practice Test       Answers

G10 Monday P7/8

  • Watch the video on the electrolysis of molten lead bromide.  Make sure you understand what is happening.

  • Predict the products when you electrolyse the following molten salts.  State what you get at the anode and the cathode.  Use your notes from last week to help you.
    a)  zinc chloride
    b)  aluminium oxide
  • Draw a diagram for the electrolysis of zinc chloride.  Include the cathode and anode, the direction of electron flow and the half equations that occur at each electrode.  Use the example given in class as a guide.
  • Review mass to moles calculations here.
  • Work through this worksheet on moles to mass calculations in equations.  We will go over the answers on Tuesday.
  • Review semester one.  Here is the study guide to help you.

See you Tuesday!

Cover for Monday

Grade 7A & Grade 7B

Hi grade 7 A,B,…

You are working on your report today.  If you still need to collect some data, please do so.  Your report for this investigation is due on Wednesday.  Look at this video to see me talk you through the TSC!

 

Grade 10

Hi Grade 10’s!

  1. Finish the experiment from Friday.  Yugo and Reece are the experts on this experiment and the calculation if you need help.
  2. Complete set 13, 14, 15 and 16 of the problems on the doc I sent to you last week.  Sena and Marii have already completed some of this and can help.
  3. Work through the questions on Empirical Formula on this site.

See you Tuesday!

Miss Winslade

 

Polymers and Plastics Review

Try this review site to test your knowledge.  Do each activity in order:

  1. Review
  2. Activity
  3. Test

Next, there are two types of plastic.  Thermosetting and thermoplastic.  For each type of plastic:

  1. give an example
  2. describe with a suitable diagram, the difference in the general structures of the two types of plastic
  3. describe the main properties of each type of plastic

Think about your potato plastic.  Which type do you think it is?