THE INDIAN HIGH SCHOOL, DUBAI PROJECT BASED LEARNING (2021-22) GRADE: 8 SCIENCE TEENS AGAINST PLASTIC POLLUTION: ENGAGE: What do you infer from the following picture? ……………………………………………………………………………………………………… ……………………………………………………………………………………………………… ……………………………………………………………………………………………………… BACK GROUND RESEARCH- Types of plastic its uses and disadvantages. Refer textbook pages from 39-46 and also the given Link and briefly write the points below. https://waste4change.com/blog/7-types-plastic-need-know 1 EXPLORE: PROBLEM: Does the usage of plastic affect life on Earth? HYPOTHESIS: MATERIAL REQUIRED& EXPERIMENT: (Conduct any one activity given below and also the Survey) Activity 1: Materials needed: 1. Fenugreek seeds (We can use fenugreek seeds as they grow fast. Any other seeds can also be used) 2. Two container to grow plants 3. Potting soil 4. News paper 5. Plastic bag Method: 1. Take potting soil in two containers. Put thirty seeds in each container. Put only a very little amount of soil on top to make the plant come out of soil faster. 2. Cover one container with newspaper and another one with clear plastic bag. 3. Place both of them at the same sunny place. Water both of them every day. 4. Observe after a week’s time. OR Activity 2: Store equal amount of tap water in a glass jar and in a single use water bottle for 2 weeks in normal room temperature. Test the pH strength of the water in both cases using a pH paper and compare the results and arrive at conclusions. Materials Required: Glass Jar, Single use water bottle, tap water, pH paper. 2 OBSERVATION(Based on Activity) CONCLUSION: (Based on analyzing the observations of activity and the survey results) SURVEY: (Pls Note: Conduct the following survey among a set of people of around 5-10 in number) 1. Are you actively aware of how much plastic you use on a regular basis? a) Yes b) No 2. Do you make an active effort to recycle used plastic? a) Yes b) No 3. Do you re-use any form of plastic packaging? a) Yes b) No 4. How often do you purchase single use plastic drinks bottles? i.e. Coca-Cola, water etc. a) Every day b) About once a week c) A few times a week d) About a few times in a month. 5. Once used, do you recycle or re-use or throw into trash a plastic drink bottle. 3 a) Recycle b) Reuse c) Throw into trash. 6. Do you own a drinks bottle designed specifically for re-usability. EXPLAIN: Write your findings in brief. Present your survey result on Public awareness of plastic pollution, people who recycle or re- use plastics, in the form of a pie chart/ bar graph. 4 ELABORATE: Q. Do you think plastics contribute to air and water pollution? Explain briefly with proper scientific reasons. (Refer the chapter 18 in your textbook to get more ideas) EVALUATE: How can we reduce the problems caused due to plastic? Design your own product 5