Osmosis

     Like what we know that water enters most of the creatures in the universe; Do you know that it constitutes more than 70% of our bodies ?  Have you ever thought about how water moves in the body's cells? What are the methods that allow cells to absorb or remove water? what does that relate to osmosis ?

you are going to draw a mind map that summarizes your understanding of osmosis after finishing the steps in the task doing the osmosis exploration required .

Part one:

Choose more than two articles from below – mark what you have chosen - ; take notes for most important information you learn about osmosis.

1.       https://en.wikipedia.org/wiki/Osmosis

2.       https://www.mytutor.co.uk/answers/15186/GCSE/Biology/What-is-Osmosis

3.       http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa_pre_2011/cells/cells4.shtml

4.       https://socratic.org/questions/what-is-osmosis

5.       https://biologydictionary.net/osmosis/

6.       https://www.thoughtco.com/definition-of-osmosis-605890

7.       https://www.britannica.com/science/osmosis

Part two :

You will work in the class in a group of three in an exploration; make sure to bring the materials in the classroom. Then answer the questions.

   The osmosis exploration.

Scientific question: What are the conditions in which osmosis occurs?

Materials and tools: three grains of grapes - three containers with their covers –a concentrated sugar solution - juice of the same type of grapes used - water - pen (flomaster) - paper towels - electronic balance

Steps:

1.    Fill in the table when you are doing the exploration steps

2.    Fill one of the vials with half the grape juice and then place the lid on it

3.    Fill the second container in half with a sugar solution and then place the lid on it

4.    Fill the third container with half water and place the lid on it

5.    Name the three vessels according to the solution containing them

6.    Create a whole grain of grapes using an electronic balance, then place it in one of the containers and record its mass in the spreadsheet

7.    Repeat the same action for the rest of the grapes

8.    Predict with your colleagues what will happen to the mass of grapes (increase or decrease) and record them in the spreadsheet

9.    In the next lesson, take the grapes out of their containers and dry them with paper towels, then record the results in the spreadsheet

Analysis and interpretation

1.    Compare the blocks of grapes before and after and then, interpret the results?

2.    Have you agreed your predictions after your observation of the recorded data? ,Explain this?

3.    Determine the occurrence of osmosis in each solution of the three solutions? And explain the direction of water transfer in the three solutions?

Part three: Please write down the answer of these questions in a paper:

1.    What is Osmosis?

2.     Is Osmosis is classified as a type of passive transport?

3.    What is the difference between Osmosis and Diffusion? ( if you are confused use this link to answer the question correctly  https://www.youtube.com/watch?v=PRi6uHDKeW4 ) 

finally draw your osmosis mind map .

At the end of the webquest, students will have:

1. Write notes and summarize information about the articles they read 

2.Used websites to answer questions about osmosis

3.Worked in groups in a scientific experiment 

40 Used their knowledge to make a mind map