CURIOUS SCIENCE – AI Test Paper (Set 45)

. Animals that consume only plants or plant products are classified as:

• • Carnivores
• • Herbivores
• • Omnivores
• • Scavengers

. Which of the following food components is primarily responsible for providing energy to the body?

• • Proteins
• • Vitamins
• • Carbohydrates
• • Minerals

. The process of separating cotton fibres from their seeds is known as:

• • Spinning
• • Weaving
• • Ginning
• • Knitting

. Materials through which objects can be seen, but not clearly, are categorized as:

• • Transparent
• • Opaque
• • Translucent
• • Lustrous

. Which method of separation uses wind to separate lighter husk particles from heavier grains?

• • Handpicking
• • Threshing
• • Winnowing
• • Sieving

. Briefly explain what 'sprouting' is and state one reason why sprouted seeds are considered beneficial.

. Name two types of food items that are rich sources of protein and two that are rich in fats.

. Name two animal products that are commonly consumed by humans.

. What is the main characteristic of an omnivore?

. What is the primary function of carbohydrates in our diet?

. List two deficiency diseases mentioned in the text.

. What is 'ginning' in the context of cotton processing?

. Name two synthetic fibers.

. Define a transparent material.

. Give two examples of substances that are soluble in water.

. What is the purpose of 'winnowing' as a separation method?

. Explain the process of 'decantation'.

. Describe the sequential steps involved in processing wool from sheep fleece to usable yarn.

. Describe the process of making sprouts from seeds.

. Explain the classification of animals based on their eating habits, providing one example for each main category.

. Discuss the importance of a 'balanced diet' and the consequences of not consuming one.

. Elaborate on the functions of roughage (dietary fibre) and water in our diet, even though they do not provide energy.

. Describe the process of obtaining cotton fabric from the cotton plant, from harvesting to yarn.

. Explain the main differences between natural and synthetic fibers, providing examples of each and listing the advantages of synthetic fibers.

. Discuss the different reasons why materials are sorted into groups.

. Describe the three states of transparency in materials, giving one example for each.

. Explain the methods of sedimentation and decantation with a suitable example.

. Describe how evaporation and condensation are used together to separate a soluble solid from a liquid and recover both components.

. All materials that possess a shiny appearance (lustre) are necessarily hard materials.

. All plants are sources of food for humans.

. Carnivores eat only plants.

. Fats provide more energy than carbohydrates.

. Deficiency of Vitamin D can lead to a disease called scurvy.

. Jute fiber is obtained from the fruit of the jute plant.

. Polyester is a natural fiber.

. All metals are lustrous when freshly cut or polished.

. Cotton is classified as a hard material.

. Handpicking is an effective method for separating very fine sand from flour.

. In a saturated solution, no more solute can dissolve at a given temperature.

. The process by which a solid substance completely dissolves in a liquid to form a solution is called __________.

. Food gives us __________ to work and play.

. Animals that eat only plants are called _________.

. __________ are known as 'body-building food' essential for growth and repair.

. Green leafy vegetables are a rich source of __________ and __________.

. Fibers obtained from plants and animals are called __________ fibers.

. Materials through which objects can be seen clearly are called __________.

. Wood typically __________ on water, while a stone __________.

. The process of separating grain from stalks is called __________.

. To separate very fine impurities from flour, the method of __________ is used.