Embibe Big Book for Science for Maharashtra Board Class 7

Science

Static Electricity

In this chapter, we will understand the origin of electric charge. It deals with static electricity, charging of an object, and methods of charging. Also, it discusses the electric charge that occurs due to thunder and lightning.

This topic covers concepts such as electric charge, types of electric charges, positive charge, negative charge, attraction of opposite nature of charges, etc.

Electric charge

This topic covers concepts such as electrostatics, charging of a body by conduction, gold-leaf electroscope, etc.

Frictional electricity

This topic covers concepts such as lightning, lightning conductors, production of nitrogen oxide during lightning, and production of ozone during lightning.

Atmospheric electric charge

General Science Standard Seven

CONCERT Science 7

AWARENESS SCIENCE for Seventh Class

Science 7

SCIENCE TEXTBOOK FOR CLASS VII

Types of Charges

Gold Leaf Electroscope

Examples of Electrostatic Charging by Rubbing

Electric Charge

Electroscope

Lightning Due to Electric Discharge

In this chapter, we will learn about the life cycle of stars. It covers a brief description of the Sun, the Moon, and stars. The celestial sphere along with the constellations has been discussed in detail with the help of pictorial representation.

In the World of Stars

This chapter covers the properties of the magnetic field and explains the use of metal detectors. We will study about magnetism and the magnetic field with the help of an experiment. It also discusses the magnetic field that occurs around Earth.

Properties of a Magnetic Field

This chapter talks about sound, generation of sound, vibrations, oscillator, and time period of oscillation. It also describes the pitch of a sound, intensity, and different frequencies of sound with the help of various examples.

Sound : Production of Sound

This chapter describes the scattering of light with the help of an experiment. We will learn about the formation of shadow from different sources. It also discusses the concept of eclipse and its types.

Effects of Light

In this chapter, we will learn the various mediums of transfer of heat. It briefs on the good and bad conductors of heat. Expansion and contraction due to heat is also discussed here with the help of experiments.

Heat

This chapter highlights the distance, displacement, speed, etc. and their use in determining the state of the object. It discusses the concept of force and work done with the help of examples. Newton's first law of motion has also been included.

Motion, Force and Work

This chapter includes the physical quantities such as mass, weight, etc. It explains some of the standard units of measurement with the help of examples. It also discusses the need for accurate measurement.

Measurement of Physical Quantities

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Static Electricity

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