Unit Test- I
6th Science IMOPRTANT Q&A(Semi) for Unit Test-I
Q.1.A. Fill in the blanks with the proper words from the brackets.
(Oxygen, dies, biotic, excretion, abiotic, 0.3, carbon dioxide, responsiveness, photosynthesis, ultraviolet, stimuli)
(1) The process by which plants make their own food is called photosynthesis.
(2) To inhale oxygen and to exhale carbon dioxide is called respiration.
(3) The elimination of waste substances from the body is called excretion.
(4) The ability to respond to an event is called responsiveness to stimuli.
(5) On completing their lifespan, every living thing dies.
(6) The layer of ozone gas absorbs ultraviolet rays that come from the sun to the earth.
(7) Of the total water available on the earth, fresh water forms 0.3 percent.
(8) Both biotic and abiotic constituents are present in the soil.
B. Match the following.
Group 'A' Group 'B'
(1) Carbon dioxide (a) Generation of soil
(2) Oxygen (b) Rain
(3) Water vapour (c) Plants and food production
(4) Microbes (d) Combustion
(5) Amphibian (e) A Monkey
(6) Vertebrate (f) A Snake
(7) With scales (g) A Frog
Answers:
1) Carbon dioxide (c) Plants and food production
(2) Oxygen (d) Combustion
(3) Water vapors (b) Rain
(4) Microbes (a) Generation of soil
(5) Amphibian (g) A Frog
(6) Vertebrate (e) A Monkey
(7) With scales (f) A Snake
C. True or false?
(1) Land and soil are the same thing. - False
(2) The water in a lake is called ground water. - True
(3) It takes about 1000 years to form a 25 cm thick layer of soil. - False
(4) Radon is used in decorative lights. - False
(5) The snail is an aquatic animal. -
(6) Amphibians can live in air and in water. - False
(7) The function of the brain is well developed in vertebrate animals. - True
(8) The amoeba is a multicellular animal. - False
D. Who am I?
(1) I'm found in a thermometer; I measure your temperature. - Mercury
(2) I make things hot or cold. - Heat
(3) I have no shape whatsoever! - Gas
(4) I dissolve in water, but not in kerosene. - Sodium
Q.2.A. What helps them to breathe?
(1) A fish - Gills
(2) A snake - Lungs
(3) A crane - Lungs
(4) An earthworm - Skin(cuticle)
(5) Man - Lungs
(6) A banyan tree – tiny pores on leaves
(7) A caterpillar - spiracles
B. Write one name of each.
(1) A flowering plant: Mango, Hibiscus. Rose,
(2) A non-flowering plant: Algae, Ferns.
(3) A tree: Teak, Neem, Banyan tree.
(4) A shrub: Oleander, Lantana.
(5) A creeper: Pumpkin, Cucumber.
(6) An annual plant: Sunflower, Sorghum, Wheat.
(7) A biennial plant: Carrot, Beat.
(8) A perennial plant: Mango, Neem, Jackfruit.
(9) Constituents of the biosphere: Animals, Plants.
(10) Biotic constituents of soil: Microbes, Insects, rats.
(11) Fossil fuel: Petrol, diesel, kerosene.
(12) Inert gases in air: Argon, Helium, Neon, Krypton, Xenon.
(13) Gases that are harmful to the ozone layer: Chlorofluorocarbons, Carbon tetrachloride.
C. Who is the odd one out?
(1) Fungus, mushroom, chrysanthemum, spirogyra: chrysanthemum
(2) Mango, banyan, palm, chick pea: palm
(3) Grape, orange, lemon, hibiscus: hibiscus
(4) Sunflower, banyan, jowar, bajra: banyan
(5) Guava, radish, carrot, beetroot: Guava
(6) Deer, fish, man, worms: fish
D. What are the emergency contact numbers of the following?
(1) Police Control Room- 100
(2) Fire brigade- 101
(3) Ambulance- 102
(4) National level single emergency number for disaster relief. - 108
E. Write the answers to the following questions in your own words.
(1) What are the various constituents of air?
Answer: The major constituents of air are:
- Nitrogen gas.
- Oxygen gas.
- Carbon dioxide gas.
- Argon.
- Water vapors.
- Dust particles.
(2) What are the parts of a plant?
Answer: Plants typically have six basic parts: roots, stems, leaves, flowers, fruits, and seeds.
(3) Which injection can cure dog bite?
Answer: The anti-rabies vaccine injection can cure dog bite.
(4) What are the types of disasters?
Answer: There are two types of disaster: natural disaster and man-made disaster.
(5) What is land made up of?
Answer: Land is made up of soil, rocks and stones.
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