CLASS 5 EVS — ANSWER KEY
Annual Examination — 100 Marks
SECTION A — OBJECTIVE TYPE
Q1. Choose the correct answer:
(a) (ii) Nose
(b) (ii) Igloo
(c) (i) Camel
(d) (iii) Evaporation
(e) (i) Well
(f) (i) Rice
(g) (ii) Tadpole
(h) (i) Common cold
(i) (ii) Potter
(j) (iii) Cotton
Q2. Fill in the blanks:
(a) Beehive
(b) Leaves
(c) Condensation
(d) Community
(e) Zebra
Q3. True or False:
(a) False
(b) True
(c) True
(d) True
(e) False
SECTION B — VERY SHORT ANSWERS
Q4.
(a) Clean drinking water keeps us healthy and protects us from water-borne diseases.
(b) Migration is the movement of people or animals from one place to another, often because of changes in season, work or living conditions.
(c) Camels have broad, padded feet which help them walk easily on loose desert sand without sinking much.
(d) Rivers and wells.
(e) We sweat to help control our body temperature. Sweat cools the body when it evaporates.
(f) A balanced diet contains different nutrients in the right amounts, such as carbohydrates, proteins, fats, vitamins, minerals and water.
(g) Elephants and ants.
(h) Food should be covered to protect it from dust, flies, germs and contamination.
(i) Recycling means processing used materials to make new useful products.
(j) Trees give us oxygen, food, shade and shelter and help maintain the balance of nature.
SECTION C — SHORT ANSWERS
Q5.
(a) Animals are useful to people in many ways. Cows provide milk, sheep provide wool, and bullocks may help farmers in agricultural work.
(b) Kutcha house: usually made from mud, straw, bamboo etc.; generally less strong; commonly found in villages or temporary settlements.
Pucca house: made from bricks, cement, iron etc.; stronger and more durable; generally lasts longer.
(c) Water is collected from sources such as rivers, lakes or dams. It is cleaned at a water-treatment plant and then supplied through pipes to homes.
(d) We can keep surroundings clean by:
- Putting waste in dustbins.
- Keeping drains clean and covered.
- Avoiding littering and separating recyclable waste.
(e) Different workers help build a house. A mason builds walls, a carpenter makes doors/windows, a plumber fits water pipes and an electrician installs electrical wiring.
(f) During growing up, a child becomes taller and heavier, body parts grow and physical abilities and mental understanding develop.
(g) Plants provide food, oxygen and shelter. They also give us medicines, wood, fibres and help maintain the environment.
(h) Mosquitoes can spread diseases when they bite an infected person and then another person. We can prevent mosquito breeding by keeping water containers covered and avoiding stagnant water.
(i) People eat different foods because food habits depend on climate, crops grown locally, availability of ingredients, culture, traditions and personal preferences.
(j) We can reduce wastage by taking only as much food as we need, storing leftover food properly, closing taps when not required and repairing leaking taps.
SECTION D — LONG ANSWERS
Q6(a). Journey of water:
Water may come from rivers, lakes, dams or underground sources. It is collected and taken to a water-treatment plant where impurities are removed. Clean water is then stored in tanks and supplied through pipes to homes.
OR
Rainwater harvesting:
Rainwater harvesting means collecting and storing rainwater for later use or allowing it to recharge groundwater. It helps save water, increases groundwater levels and reduces wastage of rainwater.
(b) Growth of a seed:
A seed needs water, air and suitable warmth to germinate. It first absorbs water and swells. The seed coat breaks, the root grows downward and the shoot grows upward. Leaves develop and the young plant gradually grows into a mature plant.
(c) Life in a cold region:
People generally wear woollen and warm clothes. They may eat hot and energy-rich foods. Houses are designed to keep warmth inside and may have special insulation. People may use heaters and change their daily activities according to the cold weather.
(d) Importance of forests:
Forests provide oxygen, fruits, wood, medicines and other useful products. They provide shelter and food for many animals. Forests help prevent soil erosion, maintain the water cycle and support biodiversity.
(e) No electricity for one week:
We may face difficulties in using fans, lights, refrigerators, televisions, computers and some cooking appliances. We can manage by using daylight, candles/torches safely, cooking with suitable alternative methods, keeping refrigerator doors closed and reducing unnecessary activities requiring electricity.
SECTION E — CASE STUDY / ACTIVITY BASED
Q7.
(i) Wastage of water and insufficient greenery.
(ii) Close taps after use; repair leaking taps.
(iii) Plant trees and maintain a school garden.
Q8.
Answers may vary according to the child’s surroundings. Example:
(i) Sparrow and crow.
(ii) Sparrow — grains/seeds; crow — grains, insects and leftover food.
(iii) They may make nests in trees, buildings or other suitable places.
(iv) Do not destroy their nests; provide clean water and suitable food and protect trees.
SECTION F — DIAGRAM / MAP / CREATIVE
Q9. Any ONE correctly drawn and labelled diagram/map earns full marks.
(a) Plant: Root → Stem → Leaves → Flower → Fruit
(b) Water cycle:
Evaporation → Condensation → Clouds → Rainfall → Collection
(c) Map: Should clearly show and label the student’s school, home, road and two nearby places, with a sensible arrangement.
TOTAL = 100 MARKS