Science (S 704) - Grade 7
|Unit 1||Understanding Motion||05||Read more|
|Unit 2||Heat||05||Read more|
|Unit 3||Wind and Storms||05||Read more|
|Unit 4||Understanding Matter||10||Read more|
|Unit 5||Acids and Bases||05||Read more|
|Unit 6||Natural Fibres and Fabrics||05||Read more|
|Unit 7||Nutrition in Plants||05||Read more|
|Unit 8||Nutrition in Animals||10||Read more|
|Unit 9||Exploring Light||05||Read more|
|Unit 10||Electric Current and its Effects||05||Read more|
|Unit 11||Changes in Everyday Life : Physical and Chemical Changes||10||Read more|
|Unit 12||Water : 'The Universal Solvent'||05||Read more|
|Unit 13||Soil: A Natural Resource||05||Read more|
|Unit 14||Respiration in Organisms||10||Read more|
|Unit 15||Transporation in Plants and Animals||05||Read more|
|Unit 16||Reproduction in Plants||05||Read more|
- Explore some time measuring devices used in earlier times. • Compare these devices to the ones used in present times.
- Estimate time taken for different events.
- Understand the term 'Motion' of an object.
- Distinguish between 'uniform' and 'non-uniform' motion.
- Name different kinds of motions such as linear motion, circular motion and oscillatory motions.
- Explain the concept of speed of a body.
- Calculate speed of a moving object using the mathematical relation between speed, distance and time.
- State basic units of time and speed.
- Explain the use of simple pendulum for measurement of time.
- Represent given distance and time information as distance –time graph.
- Explore different distance-time graphs to understand what kind of motion these represent.
- Solve simple distance, time and speed numerical.
- Understand the concept that heat is a form of energy.
- Understand the effects of heat.
- Explore daily life applications of effects of heat.
- Understand the need to measure the degree of hotness or coldness of an object.
- Relate heat to temperature.
- Differentiate between heat and temperature.
- Use a thermometer for measurement of temperature.
- Compare different types of thermometers.
- Interconvert the various units of temperature.
- Understand and explain the methods of transfer of heat in solids (conduction), liquids and gases (convection)
- Study the formation of convection currents.
- Understand the nature of heat radiations and behaviour of different colours to these radiations.
- Apply the concepts of conduction, convection and radiation to daily life experiences and observations.
Wind and Storms
- Explain common weather changes occurring at different times.
- Explain how weather is tracked.
- Interpret weather charts and graphs.
- Differentiate between weather and climate.
- Explore how climate has an effect on some living organisms.
- Investigate and perform activities to demonstrate the role of air in weather phenomena.
- Explain the occurrence of wind currents.
- Describe the formation of cyclones.
- Recongnise precautions and safety during a cyclone.
- Explore the surroundings and make a list of 10 different kinds of materials that make up the common objects in the surroundings.
- Classify these materials into pure substances and mixtures. • Differentiate between elements and compounds on the basis of the types of particles of which these are made.
- Define the terms: an atom, an element, a compound and a molecule.
- Identify materials commonly seen in the surrounding as elements and compounds.
- Classify elements as metals and nonmetals.
- Distinguish between compounds and mixtures.
- Describe the structure of matter in terms of atoms and molecules.
- Recognize that an atom is the basic building block of matter. • Comprehend the structure of an atom and its constituent parts.
- Recognize that atoms are too small to be seen.
- Write symbols of elements with atomic numbers 1 to 20.
- Describe electron arrangements of elements with atomic numbers 1 to 20.
- Draw electron arrangement of an atom in an element.
- State the meaning of the term 'valence electrons'.
- Determine the number of valence electrons from given electron arrangement of an atom.
Acids and Bases
- Give an operational definition of an acid and a base, using the characteristic properties of these substances
- Perform activities to investigate the characteristics of acids and bases.
- Name some acids and bases which are used in common household products.
- Define and identify different types of indicators.
- Differentiate between acids and bases on the basis of various properties exhibited by them.
- Distinguish between natural and synthetic indicators.
- Perform activities and experiments using indicators to classify solutions as acidic, neutral or alkaline and construct a pH scale.
- Comprehend the meaning of pH scale.
- Perform activities and experiments with the help of natural indicators extracted from red cabbage, turmeric, China rose, etc., to identify acids and bases.
- Perform experiments by taking different soap solutions and indicators and study the resulting results.
Natural Fibres and Fabrics
- Understand the meaning of natural fibres.
- Identify different types of natural fibres.
- Classify natural fibres as animal and plant fibres along with their specific sources.
- Recognize different types of fabrics made from different natural fibres. • Identify animals and plants from which we get fibres.
- Describe the properties of fibres and apply this knowledge to types of clothes worn in different seasons in different places.
- Understand various steps involved in making of different types of yarns namely cotton, jute, wool and silk.
- Relate the term 'sericulture' as human effort to produce silk in large scale.
- Identify different stages in the life cycle of silk moth to comprehend the fact that why some cocoons are allowed to undergo metamorphosis.
Nutrition in Plants
- Define the term 'nutrition'.
- Differentiate between two types of nutrition.
- Recognize the significance of autotrophs as producers.
- List the conditions required for photosynthesis.
- Recognise importance of photosynthesis laying stress on the importance of plants as a direct or indirect source of food.
- Comprehend that plants possess stomata through which gaseous exchange takes place.
- Explore the role of plants and animals in maintaining the balance in nature.
- Carry out simple activity to explain the consequences of absence of photosynthesis and relating it to the interdependence in living organisms.
- Justify the need of other modes of nutrition in plants apart from autotrophic mode.
- List different modes of heterotrophic nutrition in plants.
Nutrition in Animals
- Understand the importance of food in different animals.
- Comprehend on the statement, "Food in the body is yet not in the stomach".
- Differentiate between nutrition in plants and animals.
- Categorize/classify animals on the basis of their mode of nutrition.
- Prepare an outline of various modes of intake of food.
- List 10 commonly found animals; relate the type of food to the mode of taking it in.
- Investigate and illustrate the journey of food in the alimentary canal.
- Analyze that the utilization of food takes place only after it is digested into simple forms and absorbed by the body. \
- Describe the processes of digestion, Absorption, assimilation and release of energy.
- Relate structure of Digestive System to its function(s).
- Discuss the role of various organs of ingestion, digestion, absorption and egestion.
- Describe and interpret the difference in the digestive system of grass eating animals(herbivores).
- Understand nutrition in other animals.
- Recall that light travels in a straight line.
- Perform simple experiments to show the reflection of light. • Investigate the relation between the angles of incidence and the angles of reflection.
- State the laws of reflection and apply them to problems.
- Classify between the two types of reflection.
- Explore the characteristics of image formed in a plane mirror through experiments and then list them.
- Identify the two types of spherical mirrors concave and convex.
- Compare and contrast between image formed in a plane mirror and spherical mirrors. • Perform experiments to understand image formed by a concave mirror for object placed at different distances from it.
- Differentiate between real and virtual image.
- Recognise the use of spherical mirrors in different places.
- Conclude that sunlight is composed of different colours.
Electric Current and its Effects
- Draw an electric circuit using appropriate symbols.
- Understand and elaborate the heating effect of electric current.
- Name and explain the working of simple devices which work on the heating effect of current.
- Understand the working of an electric fuse and its importance in an electric circuit.
- Understand and elaborate the magnetic effect of current.
- Make an electromagnet and explain its use in our day to day life.
- Explain the working of an electric bell.
- Perform simple activities to understand related concepts.
Changes in Everyday Life : Physical and Chemical Changes
- Understand the concepts of a chemical change and a physical change.
- Identify observable evidence of a physical change (e.g., change in shape, size, phase).
- Identify observable evidence of a chemical change (e.g., color change, heat and/or light being given off or taken in by reactants, gas being given off, a change in odour).
- Understand that mass is conserved during a physical and a chemical change.
- Differentiate between a physical and chemical change.
- Investigate the effects of chemical change on physical properties of a substance (e.g., cooking a raw egg, iron rusting, and polymerization of a resin).
- Investigate and measure the effects of increasing or decreasing the amount of energy in a physical or chemical change and relate this energy added to the motion of the particles.
- Identify kinds of energy (e.g., heat, light, sound) given off or taken in when a substance undergoes a chemical or physical change.
- Explain the terms: crystallization, galvanization, rusting, fermentation, sublimation, etc., with examples.
- Recognise the significance of chemical changes in everyday situations, [e.g., ripening fruit, setting superglue, cooking food, etc.,]
- Perform an activity for preparation of copper sulphate crystals to understand physical change.
- Study various chemical and physical changes with experiments such as burning of magnesium, heating of lead nitrate, heating of iodine, heating of ammonium chloride.
- Perform simple activities to classify the type of change undergone by various materials i.e., breaking of chalk, heating of iron, rottening of eggs, etc
Water: 'The Universal Solvent'
- Recognize the importance of water for survival of life.
- Appreciate the importance of water in food production and its avaibility.
- Value water as an important renewable resource.
- Define rate of percolation.
- Recognize that there is a lot of water in the world but whole of it cannot be used for drinking or many other human activities.
- Describe sources of water and its management.
- Recognize that ground water is a very small percentage of the earth's water.
- Understand how important it is to take care of existing ground water.
- Distinguish between hard water and soft water.
- Evaluate the use of commercial water softeners.
- Consider and evaluate the environmental and social and economic aspects of water quality and hardness.
- Perform an activity to compare the hardness of samples of water by shaking with soap solution.
- Appreciate that water of correct quality is essential for life and science.
- Explain the purpose of waste water treatment.
- Identify and explain main physical, chemical and biological processes for water and waste water treatment.
- Explain the main design criteria for water and waste water treatment processes.
- Perform an activity related to waste water treatment.
Soil: A Natural Resource
- Describe why soil is an important dynamic natural resource. • Describe basic soil properties and soil formation factors.
- Determine basic soil properties and limitations, such as mottling, permeability, by observing a soil pit.
- Identify the types of soil erosion and suggest methods of reducing it.
- List the various uses of soil.
- Describe the composition of soil.
- Recognize the types of soil: sandy, clayey, loamy, mixture of sand and loam.
- Develop an understanding of the soil properties that affect soil health and soil quality.
- Discuss how soil is a factor in, or is impacted by nonpoint source pollution.
- Relate crop cultivation and type of soil.
- Perform an activity to find out the moisture content of a sample soil.
- Perform activities and experiments by taking samples of soil and predict suitable cultivation activities, i.e., for cultivation of rice, wheat, etc.
Respiration in Organisms
- Comprehend the need for exchange of gases in all living organisms.
- Describe process of breathing and respiration.
- Differentiate between breathing and respiration.
- Relate types of respiration to the need of the organisms.
- Examine utilization of oxygen for breaking down of assimilated food to release energy.
- Identify various organs involved in inhalation and exhalation in human body.
- Determine the role of diaphragm in breathing.
- Restate breathing and respiration in animals living in different habitats.
- Carry out simple activities related to breathing and respiration in living organisms.
- Reason out that exchange of gases in living organisms depends on the process of respiration and photosynthesis (plants).
Transporation in Plants and Animals
- Recognize the need for movement as a characteristic of living organism.
- Comprehend related terms such as Transportation, Movement, Locomotion, Circulation.
- Justify the need for transportation in the living world.
- Describe the process of transportation in plants.
- Explain the process of transportation, diffusion and osmosis in plants.
- Identify various parts involved in transportation in human body.
- Describe human circulatory system in a simple manner.
- Understand the functioning of kidney: - As an excretory organ. - As a purifier of blood.
- Relate structure and function of excretory organs.
- Identify different types of excretory organs found in different animals.
- Explore different mechanism of excretion in lower organisms.
Reproduction in Plants
- Define the importance of reproduction as a process of propagation of life.
- Comprehend sexual and asexual modes of reproduction in plants.
- Examine and illustrate vegetative propagation in Ginger, Onion and Bryophyllum.
- Identify parts of a flower.
- Compare self pollination and cross pollination.
- Define fertilization and study how an embryo is formed from a zygote.
- Illustrate the process of fruit formation.
- Investigate the journey of seed formation.
- Identify various agents of seed dispersal with specific examples