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Objective: Understand the use of indicators in photosynthesis experiments

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Objective: Understand the use of indicators in photosynthesis experiments

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Todays task
Task 1, 3 options
Task 2, 3 options
Task 3, 3 options

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objective: carry out photosynthesis experiment

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objective: carry out photosynthesis experiment

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Task 1 - Padlet

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Objective: use experiments to show what can affect photosynthesis

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Objective: use experiments to show what can affect photosynthesis

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Task 1 - 3 options - post on padlet
Task 2 - 3 options - post on padlet
Task 3 - padlet comments

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Objective: to understand how the plant uses glucose and know the other requirements for healthy plant growth

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Objective: to understand how the plant uses glucose and know the other requirements for healthy plant growth

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Todays task list
Task 1 - Padlet discussion
Task 2 - Padlet Core, additional or extension options

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Objective: embed the structure of the leaf and understand how the leaf is adapted to perform maximum photosynthesis

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Objective: embed the structure of the leaf and understand how the leaf is adapted to perform maximum photosynthesis

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Todays task list
Task 1 -  quizizz
Task 2 - Core
Task 3 - Core, additional or extension option

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Objective: to name and describe the roles of the different layers in the leaf

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Objective: to name and describe the roles of the different layers in the leaf

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Todays task list
Task 1 - Core, additional and extension options - Goggle classroom
Task 2 - Core - padlet
Task 3 - Core - quizizz practice

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In this topic we will look at how plants are adapted to create sugar through photosynthesis and the conditions needed for this process to take place.

Each lessons activities are posted on colour coded posts. Each activity is labelled as:
Core  - everybody must complete this. Post your work in green posts
Additional - tasks to further support key ideas, should be completed by most people during class time. Post your work in blue posts
Extension - further thinking at high grade or above GCSE, completed by students that wish for a more depth of understanding and have completed the core and additional tasks for that lesson. Post your work in Lilac posts

You must complete the core tasks before starting the additional, and core and additional tasks before starting the extension.

After each activity has been completed you can rate each task out of 5* for how you felt it helped you learn and progress with the topic.

Each topic can be commented on, if you have any questions please use the comment feature as it may help others with the same questions.

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Objective: how to make the most of photosynthesis and understand the importance of photosynthesis

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Objective: how to make the most of photosynthesis and understand the importance of photosynthesis

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Task 1
Task 2
Task 3

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Objective: to know the photosynthesis equation

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Objective: to know the photosynthesis equation

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Todays task list
Task 1 - Core - Pre-assessment
Task 2 - Core, additional and extension options - padlet
Task 3 - Core padlet

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Objective: understand how different factors can limit the rate of photosynthesis

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Objective: understand how different factors can limit the rate of photosynthesis

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Todays task list
Task 1, 3 options
Task 2, 3 options
Task 3, 3 options

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Quizizz competition

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Quizizz - The world's most engaging learning platform

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Find and create gamified quizzes, lessons, presentations, and flashcards for students, employees, and everyone else. Get started for free!

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Post topic assessment

Complete the questions on google classroom

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How are you liking Padlet and this style of lesson? Use this column to let me know!

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How are you liking Padlet and this style of lesson? Use this column to let me know!

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Let me know the good, the bad and the ugly!

Please bear in mind that not everyone learns in the same way and so may have different opinions to you!.

Please try to focus on the learning rather than if a task was hard or easy to do.

Feel free to suggest other ideas if you think of them!

Also don't forget to can give me quick feedback by rating the posts!

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Pink posts
Key information

White posts
Introductions

Yellow posts
Tasks

Green posts
Student work for core activities

Blue posts
Student work for  additional activities

Lilac posts
Student work for extension activities

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CORE- Identify and explain the colour differences of the following hypothetical situations based on what you know about hydrogen carbonate indicators.

a) If the tube with the plant is kept in the dark (perhaps by wrapping silver foil round the boiling tube), what colour do you think the indicator will turn?  Explain why you think this.

b) If the tube with the plant is kept in bright light, what colour do you think the indicator will turn and why?

c) If a control tube is set up with no plant in at all but left for two days and no colour change is observed, what does this show?

ADDITIONAL- Create a poster of the different colours with a detailed explanation and post on padlet.

EXTENSION- Create a poem that will help us memorise the colours and what they indicate.

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Carry out your own experiment using the online programme found here. https://leosiiman.neocities.org/lab-rate-of-photosynthesis/photolab-individual-graasp.plain.html

Use the worksheets on the posts below to support your write up. There are 3 different worksheets with different levels of support. Choose the one you feel most comfortable in completing.

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Vocabulary Sheet - Complete the vocabulary sheet to include definitions of the important terms used in experiments

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Uses of glucose

This image shows some of the ways the plant uses glucose. From the image, add a comment to  suggest what you think they might be

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Build a leaf

For this task you can get creative. You need to create a leaf and show the different layers with their roles. You could draw it, make it from lego, building using materials you normally throw away, you could even photograph yourself being each type of cell and photoshop it all together! The marking criteria is attached to this post.

Post a picture of your 'leaf' in the student post column.

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Finish the lesson by completing some past paper questions on the google form on the classroom. there are different options and difficulties.

Core - question 1 - 6
Additional - questions 1 - 7
Extension - question 1 - 9

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A link to the spec - pg 17-18 on page numbers (pg 18-19 on the pdf)
https://www.cambridgeinternational.org/Images/595426-2023-2025-syllabus.pdf

Please add any good  revision materials you find in the comments to share with everybody.

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Another chance to be creative! Prepare a sales pitch  using the info in the worksheet below.
This could be a letter, a script, a filmed TV advert, an advertisement for a billboard. Be creative abut remember the science must be included!

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Pre topic assessment. What do you already know?

Take the assessment on google classroom without looking up any answers. It will not count towards any grades but will help us to see what knowledge you already have.

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Google Forms - create and analyze surveys, for free.

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Describe what we could change to increase the rate of photosynthesis – 3 things. What else could affect the rate of photosynthesis?

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Respiration in biology is NOT breathing. It is the process that generates energy. The equation is the exact opposite of the photosynthesis equation.

CORE: Using the information learned today, leave a note in padlet with an explanation of the different colours of the hydrogen carbonate indicator in the image blow.

ADDITIONAL: Create your own experimental set up with hydrogen carbonate indicator and different combinations of colours.

EXTENSION: Go through others' additional work and leave a comment to explain the colours in their hypothetical experiment.

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Make an interesting acronym to remember the essential parts of an experiment.

Introduction, Hypothesis, Variables, Materials, Procedures, Analysis, Conclusion

Example: I have very many pretty Asian cats!

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Create a story board to show how glucose could be used in the plant. Use the spec to guide your research

Post your work on green posts

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Adaptations of the leaf

How are plants adapted to perform the maximum amount of photosynthesis? In your answer you should include…

External structure e.g. size and shape of leaves. Post your answer in green posts

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Exam paper questions organised by topic and difficulty. Our worksheets cover all topics from GCSE, IGCSE and A Level courses. Give them a try and see how you do!

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Leaf structure

Watch the following video. Annotate a hand drawn sketch  with the names and roles of each layer. You can take a picture, screenshot of your picture or use the draw feature on padlet. Post it in the student posts column

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Lesson 1 - Prior knowledge and the photosynthesis equation
Lesson 2 - Structure of leaves
Lesson 3 - Adaptations of leaves
Lesson 4 - Uses of glucose
Lesson 5 - Experimental processes
Lesson 6 - Experimental processes
Lesson 7 - Limiting factors
Lesson 8 - Importance of photosynthesis
Lesson 9 - Revision
Lesson 10 - Assessment

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Mineral requirements

Write this in your notes

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The photosynthesis equation

Core - Find out what the word equation for photosynthesis is and post it in the student post column. Highlight the reactants and products in different colours. What are the additional requirements for the reaction to take place? Post in green post.

Additional - After completing the core task, make up a poem, song or rap to a tune of your choice to remember the equation. Post your lyrics next to this post in blue posts.

Extension (+ additional + core) - After completing core and additional tasks, explain what the point of photosynthesis is – why do plants do it? What is the significance of this process? Include a balanced symbol equation in your answer. Upload your answer onto lilac posts

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What is the relationship between light intensity and rate of photosynthesis? As you continue to increase light, will the rate change in the same way each time? Explain your answer.

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Complete Experimental Questions. Depending on how much you want to challenge yourself - choose the following.

CORE: 1 - 8
ADDITIONAL: 1-9
EXTENSION: 1-10

Submit your responses on google doc and post in the student posts column

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Get access to files anywhere through secure cloud storage and file backup for your photos, videos, files and more with Google Drive.

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Create a quizlet with the terms of your core task assignment. Post a link in the student post column

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Create a flow chart to show all the possible ways glucose might be used in the plant and the processes that allow these uses

Post your work on blue posts

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Adaptations of the leaf

How are plants adapted to perform the maximum amount of photosynthesis? In your answer you should include…

External structure e.g. size and shape of leaves. and the internal structure of the leaf. For example, the different layers, their roles and how each one helps photosynthesis. Post your work to the student post column next to this post in blue posts.

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Quizizz practice.

Test what you know about the structure of the leave using the practice link.

We will be competing later!

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Join an activity with your class and find or create your own quizzes and flashcards.

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Photosynthesis – the most important process on the planet?

Write an essay on the above title. Use the attached help sheet if needed.

CORE: Includes details of photosynthesis and its role in biomass production

ADDITIONAL: Explain the role of biomass and energy in food chains

EXTENSION: Evaluates the importance against other key processes (hint - respiration) and explain how plants and photosynthesis plays a role in the water and carbon cycles (Y11 topics)

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Find a video about photosynthesis that you like and think is useful. Post a link and an explanation of why you think it's good in the student post column.

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Explain what the inverse square law for light intensity is. You might want to include diagrams or graphs in your explanation

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Watch the following youtube clips of potential experiments you can do at home.

https://youtu.be/2IuVPg5zRhg

Identify the following variables in the experiment using comments below..
1. Independent variable
2. Dependent variable
3. Control variables

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Create a story of a glucose molecule. Include detail about what it is made from and how that process happened as well as all of the possible outcomes for its life span in the plant.

Post your work on lilac posts

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Adaptations of the leaf

How are plants adapted to perform the maximum amount of photosynthesis? In your answer you should include…

External structure e.g. size and shape of leaves. and the internal structure of the leaf. For example, the different layers, their roles and how each one helps photosynthesis
Then look at the plant as a whole. What general adaptations allow it to carry out photosynthesis. Post your work in Lilac post in the student post column

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You have already completed some in task 3 but you can look over the others with the mark schemes as part of your revision if you wish

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Look at the challenge sheets with experiment examples attached. For each one identify the independent and dependent variables. you can do any challenge in any order

Good - 1 challenge
Even better if - 2 challenges
Excellent - 3 challenges

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Core
Sketch the graphs of the 3 limiting factors. Don’t forget titles and labels! (help sheet attached if needed)

Additional
Describe the shape of the graphs if we plot the 3 limiting factor against rate of photosynthesis.

Extension
Explain why the graph for carbon dioxide concentration increases and then plateaus. Explain how we could increase the rate further after this point.

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Look at the challenge sheets with experiment examples attached. For each one identify the independent and dependent variables AND think of some variables that would need to be controlled. You can do any challenge in any order

Good - 1 challenge
Even better if - 2 challenges
Excellent - 3 challenges

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CORE
Plot a graph for this data

ADDITIONAL
Plot the graph then describe the changes in rate of oxygen production as the lamp moves closer.

EXTENSION
Complete the additional task first. This graph does not show the light intensity. Sketch the graph you would expect if we plotted light intensity against oxygen production?

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Look at the challenge sheets with experiment examples attached.. For each one identify the independent and dependent variables AND think of some variables that would need to be kept the same. Suggest what would happen if these variables were not controlled and how you would expect the results to differ. You can do any challenge in any order

Good - 1 challenge
Even better if - 2 challenges
Excellent - 3 challenges

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C ₆ H ₁₂ O ₆ + 6O 2
Reactants: Carbon Dioxide, Water, Sunlight
Products: Glucose, Oxygen

Temperature
Concentration

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Reactants- Carbon dioxide, water and sunlight.

Products- Glucose and Oxygen

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Reactants- Carbon dioxide, water and sunlight.

Products- Glucose and Oxygen

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6CO2 + 6H20 + (energy) → C6H12O6 + 6O2Carbon dioxide + water + energy from light produces glucose and oxygen.

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Photosynthesis is used by plants to transform water, sunlight, and carbon dioxide into oxygen and energy.

It is important because we need oxygen to live, and plants produces the oxygen for us. C ₆ H ₁₂ O ₆ + 6O ₂

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Carbon Dioxide + Water + Sunlight ———> Glucose (simple sugar) + Oxygen

Reactants: CO2, water, sunlight

Product: Glucose, oxygen

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6H2O → C6H12O6 + 6O2  Carbon dioxide + Water → Glucose + oxygen. 

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6H2O → C6H12O6 + 6O2  Carbon dioxide + Water → Glucose + oxygen. 

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reactants: CO2 water sunlight,
products: Glucose oxygen
jasmine

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6CO ₂ + 6H ₂ O → C ₆ H ₁₂ O ₆ + 6O 2

reactants: CO2, H2O, big papa sun

Products: Glucose, oxygen

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6CO ₂   +    6H ₂ O  →   C ₆ H ₁₂ O ₆   +    6O ₂   +     6H ₂ O
The point of photosynthesis is to convert solar energy into chemical energy and then store that chemical energy for future use.

Plants do it to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars which is their food to survive

Plants produce oxygen for humans to breathe, and help absorb carbon dioxide on Earth.

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https://www.youtube.com/watch?v=sQK3Yr4Sc_k

Isn’t some kind of kids show explanation, so it’s more detailed and doesn’t make me want to yank out my eyes

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https://youtu.be/CL9A8YhwUps

I think this video is good because it explains photosynthesis in detail and it talks about the cross section of a plant.

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What Is Photosynthesis? | Biology | FuseSchool

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Point of photosynthesis plants do it to stay alive as by using sunlight and carbon dioxide, water they can convert them into simple sugars as food storage and also release oxygen for living things to breathe

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https://youtu.be/C1_uez5WX1o

I like this because it's simple and easy to understand the basic concepts. It is also amusing to watch.

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Photosynthesis
Making carbohydrates
to fabricate
its own food
CO2 H2O and sunlight
It happens in the chloroplast.
Carbohydrates are a mix
Of C6 H12 and O6
This process will give off O2

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https://www.youtube.com/watch?v=xuivYRmIACM

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Carmen Twillie, Lebo M. - Circle of Life (From "The Lion King")

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I like this photosynthesis song because it shows all the equations clearly and it’s also kinda funny. Plus the flower guy kinda looks like the demegorgon from stranger things

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THE PHOTOSYNTHESIS SONG (Parody of The Weeknd - Starboy)

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https://www.youtube.com/watch?v=CL9A8YhwUps
Natalie

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Ft. Doug the Sunflower

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https://youtu.be/eo5XndJaz-Y

i think this video is good because it’s told in a simple way and it always shows the links between photosynthesis, respiration and digestion.

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The simple story of photosynthesis and food - Amanda Ooten

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Apologies for my incredibly ugly drawing

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Independent variable: amount of sunlight
Dependant variable: amount of bubbles produced
Control variable: size of leaf