Summer Vacation Homework (Grade VII Science)

SUMMER VACATION HOMEWORK

Subject: Science

Grade VII

Instructions:

  • Complete all work neatly in your notebook.
  • Use colored pencils for diagrams and charts.
  • Write answers in complete sentences.
  • Attempt all sections carefully.

Part A: Nutrition in Plants

1. Answer the following questions:

  1. What is nutrition?
  2. What is photosynthesis?
  3. Why are green plants called autotrophs?
  4. What are raw materials needed for photosynthesis?
  5. What is the role of chlorophyll?
  6. Why is sunlight important for plants?
  7. What are stomata?
  8. What is the difference between autotrophic and heterotrophic nutrition?

2. Fill in the blanks:

  1. Green plants prepare food by ______.
  2. Leaves contain a green pigment called ______.
  3. Plants take in carbon dioxide through tiny pores called ______.
  4. The stored food in plants is mainly ______.
  5. Plants that cannot make their own food are called ______.

3. Match the following:

Column A

Column B

Chlorophyll

Green pigment

Stomata

Tiny pores in leaves

Sunlight

Needed for photosynthesis

Cuscuta

Parasitic plant

Mushroom

Saprotroph

4. Draw and Label:

Draw a leaf and label:

  • Stomata
  • Chlorophyll
  • Veins
  • Petiole

5. Activity:

Observe 3 plants around your home and write:

  • Name of plant
  • Leaf color
  • Sunlight needed (high/medium/low)
  • Any special feature

Part B: Nutrition in Animals

1. Answer the following:

  1. What is nutrition in animals?
  2. Name the five steps of nutrition.
  3. What is ingestion?
  4. What is digestion?
  5. What is absorption?
  6. Why do herbivores chew cud?
  7. How is digestion in humans useful?
  8. What is the role of the small intestine?

2. Fill in the blanks:

  1. Animals depend on ______ for food.
  2. Digestion starts in the ______.
  3. Bile is produced by the ______.
  4. The largest gland in the body is the ______.
  5. Digested food is absorbed in the ______.

3. Match the following:

Column A

Column B

Ingestion

Taking in food

Digestion

Breaking down food

Absorption

Nutrients enter blood

Egestion

Removal of undigested food

Ruminants

Cow, buffalo

4. Draw and Label:

Draw the human digestive system and label:

  • Mouth
  • Food pipe
  • Stomach
  • Liver
  • Small intestine
  • Large intestine

5. Activity:

Write the food habit (herbivore/carnivore/omnivore) of:

  • Cow
  • Lion
  • Bear
  • Deer
  • Human

Part C: Heat

1. Answer the following:

  1. What is heat?
  2. What is temperature?
  3. What is the difference between heat and temperature?
  4. Name the units of temperature.
  5. What is conduction?
  6. What is convection?
  7. What is radiation?
  8. Why do we wear woollen clothes in winter?

2. Fill in the blanks:

  1. Heat always flows from a ______ object to a ______ object.
  2. A thermometer is used to measure ______.
  3. Metals are good conductors of ______.
  4. The transfer of heat in liquids and gases is called ______.
  5. The Sun gives us heat by ______.

3. Match the following:

Column A

Column B

Conduction

Heat transfer in solids

Convection

Heat transfer in liquids/gases

Radiation

Heat from the Sun

Thermometer

Measures temperature

Woollen clothes

Trap heat

4. Activity:

Observe and write 5 examples of heat transfer in daily life.

Part D: Project Work (Choose Any One)

Option 1:

Make a chart showing types of nutrition in plants and animals.

Option 2:

Create a scrapbook of heat transfer examples (conduction, convection, radiation).

Option 3:

Write a short report (10–12 lines) on “How plants, animals, and heat are connected to life.”

Part E: Fun Learning

1. Unscramble the words:

  1. TOSTHYNPHESIS → ______
  2. TIONDIGES → ______
  3. TEPMERATURE → ______
  4. RUMNIANTS → ______
  5. NOITCUDCON → ______

2. Find the odd one out:

  1. Leaf – Chlorophyll – Stomata – Stomach
  2. Cow – Goat – Deer – Iron
  3. Conduction – Convection – Radiation – Digestion

Part F: Higher Thinking Questions

  1. Why are plants called producers?
  2. Why is digestion important for animals?
  3. How does heat affect our daily life?
  4. Why do dark-colored clothes feel hotter in summer?

Bonus Task

Write 10–12 lines on “Why nutrition and heat are important for living organisms.”

Submission: Neat handwriting, labelled diagrams, creativity, charts, and complete work.