Department Andhra Pradesh State Council of Educational Research and Training [APSCERT]
Exam Summative Assessment SA-II
Class 7th
Subject  General Science
Document Type PDF
Official Website https://scert.ap.gov.in/SCERT/

APSCERT SA-II Class 7th General Science Key

Download Andhra Pradesh State Council of Educational Research and Training [APSCERT], Summative Assessment SA-II, Class 7th General Science Key.

Download APSCERT SA-II Class 7th General Science Key

APSCERT SA-II Class 7th General Science Key Download

APSCERT SA-II Class 7th General Science Key

Section – I:
1. Differences between Parasites and Saprophytes. 2×1 = 2 m
2. Turmeric is an indicator. Lime water is a base. Turmeric turns in to red when base is added to it. So when lime water sprinkled on turmeric idol, it turns in to red colour. 2 m
3. 5 images will form, if two mirrors are kept in 60o angle to each other. 2 m
4. 1. Water is food. Any two 2 m
Parasites Saprophytes
Depends on other organisms for food. Grow on dead and decaying matter
Example: Cuscuta Example: Fungi
5. Turmeric is an indicator. Lime water is a base. Turmeric turns in to red when base is added to it. So when lime water sprinkled on turmeric idol, it turns in to red colour. 2 m
6. 5 images will form, if two mirrors are kept in 60o angle to each other. 2 m
7. 1. Water is food. Any two 2 m
2. Water helps the food to move easily in the digestive tract.
3. Water helps in many other processes in our body. Any related answer should be considered.

Section – II:
8. 1. If there are no holes in the banners and hoardings, air exerts pressure on them which leads to their damage.
2. If hole are made, air pass through them easily so the banners and hording will be safe. So holes are made to hoardings and banners. 4m

9. 1. There is a problem with fixing mirror elevation for a house.
2.The light which falls on the mirror elevations undergo multiple reflections .
3. When it falls on people’s eyes it may lead to accidents.
4. So Sasi’s father not accepted her request. 4 m

7. 1. Cell,
2. Electric Bulb,
3. Switch in off position,
4. Fuse each one 1 m

8. 1. Five days
2. On Day 1
3. On Day 2,3,4 and 5
4. Thermometer each one 1 m

9. 1. In Barber’s shops
2. In Sweet shops
3. In Kaleidoscope
4. In Glass Chambers of some temples etc,. each one 1 m

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