CBSE Class 7 Science Project Worksheet

Science

Question 1. Prepare an action plan about how you shall work to minimize the harmful effect of the environment.
Use the clue to complete the report:-
Forest areas has been cut to make buildings. The area is facing a number of problems like increase in cases where lions and tigers have become man-eaters. So also the chemical nature of the soil is changing. 150 words.
Answer: Action Plan to Protect and Restore Our Environment
Introduction: Rapid deforestation for real estate development has severely disrupted natural ecosystems. With forests shrinking, wild predators like lions and tigers are losing their natural prey base, leading to increased human-wildlife conflicts and man-eater cases. Furthermore, excessive use of chemical fertilizers and industrial runoff is altering the chemical nature of the soil, rendering lands infertile.
Action Plan Steps:
1. Mass Afforestation Drives: Initiate massive tree-planting campaigns around urban fringes and degraded forest zones to rebuild natural habitats.
2. Wildlife Corridor Protection: Establish protected wildlife corridors to ensure safe movement of animals and reduce human-animal encounters.
3. Promoting Organic Farming: Replace chemical fertilizers and pesticides with bio-fertilizers, compost, and organic manure to restore soil pH and natural fertility.
4. Community Awareness: Conduct workshops in schools and local neighborhoods to educate people on sustainable living, waste reduction, and biodiversity conservation.
5. Strict Regulations: Advocate for strict legal actions against illegal tree felling and unregulated industrial waste disposal.
In simple words: We must plant more trees, protect animal habitats, and stop using harmful chemicals in soil to keep nature balanced.

Exam Tip: Structure your report with an introduction, clear point-wise action steps, and a concluding summary within the prescribed word limit.

Question 2. During summer season we need to use water judiciously. Very often you find taps are leaking, water is flowing from, pipelines etc.........
i. Collect some pictures and news headlines and paste it.
ii. Suggest some ways to preserve water at home. Minimum 5 points.
Answer: (i) Sample News Headlines and Picture Context:
- Headline: "Severe Water Crisis Looms as Main Pipeline Bursts in City Suburbs"
- Headline: "Civic Body Appeals Citizens to Fix Leaking Taps to Save Millions of Litres Daily"
- Picture Description: A photograph showing water continuously dripping from a rusted public tap or a broken municipal supply pipe.
(ii) Ways to preserve water at home:
1. Promptly repair leaking taps, faulty flush tanks, and broken pipelines.
2. Turn off the tap while brushing teeth or soaping hands.
3. Use a bucket and mug to wash cars and water plants instead of using a running hosepipe.
4. Reuse wastewater from washing vegetables or rinsing rice to water potted plants.
5. Install water-efficient fixtures such as aerators on taps to reduce flow rate without losing water pressure.
In simple words: Fix leaks immediately and adopt simple daily habits like using buckets instead of hoses to save precious water.

Exam Tip: When listing practical conservation methods, ensure each point is specific, actionable, and relates directly to household activities.

Question 3. See the given picture and write different ways of saving energy in your school campus. (Collect 15 points from the picture)
Answer: Based on the energy-saving mind map and campus guidelines, here are 15 distinct ways to save energy in a school campus:
1. Turn off classroom lights whenever rooms are unoccupied or adequate daylight is available.
2. Switch off ceiling fans immediately when leaving the classroom.
3. Keep doors and windows closed when air conditioning or heating is running.
4. Set thermostats to energy-efficient temperatures (e.g., 24 degrees Celsius in summer).
5. Turn off computers, monitors, and projectors from the main power switch after school hours.
6. Unplug chargers and electronic peripherals when not in use to avoid phantom power draw.
7. Maximize the use of natural sunlight by opening blinds and curtains during daytime.
8. Replace traditional incandescent bulbs and tube lights with energy-efficient LED lamps.
9. Regularly clean lighting fixtures and lamps to maintain maximum illumination efficiency.
10. Encourage students and staff to walk, cycle, or use school buses instead of private vehicles to conserve fuel.
11. Install solar water heaters in school hostels or cafeterias.
12. Use solar panels for campus outdoor lighting and garden lamps.
13. Establish a student "Energy Club" to monitor and remind classrooms to switch off electrical appliances.
14. Service school air conditioners and coolers regularly to ensure peak operational efficiency.
15. Position furniture near windows to utilize natural daylight for reading and writing activities.
In simple words: Save school energy by turning off lights and fans, using natural sunlight, unplugging devices, and promoting carpooling or cycling.

Exam Tip: When extracting points from a visual mind map, categorize them logically into lighting, appliances, heating/cooling, and transport for maximum clarity.