JACB - 7 - Science :: Know Light

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Go To: JACB-Sci-Grade 7

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Course content
Textbook
Teaching learning resources

Course Content / Subtopic list:

Light traveling along a straight line
Reflection of light
Image of an object, real image and virtual image
Characteristics of the images formed by a plane mirror
Side inversion
Spherical mirrors - concave and convex mirrors
Image formed by spherical mirror
Image formed by a concave mirror when the object is far off
Use of concave mirrors
Image formed by a convex mirror, Uses of convex mirrors
Lenses - concave and convex
Image formed by a convex lens, Uses of convex lenses
Image formed by a concave lens, uses of concave lenses
Sunlight :- white or coloured , dispersion of light

Expected Learning Outcome:

SWBAT-

Explain the light traveling along a straight line
Define reflection of light
State the characteristics of the images formed by a plane mirror
Differentiate between concave and convex mirrors
Differentiate between concave and convex lenses
Explain dispersion of light

Hindi Medium

Hindi medium textbook

Lesson Plan

[Contributor - Sasmita Kant Maurya]

Dear Volunteer,

Please find below the detailed lesson plan and PPT for this chapter in the language mentioned against the respective link. While the lesson plan will give an overall flow of the lesson, the PPT will include lesson flow as well as the presentations for the class.

https://drive.google.com/open?id=1-Nzo2FRwgMsBOTjptEvzji1FgPMdpqgE (lesson Plan - English)

https://drive.google.com/open?id=1Dd1sjQVJbvSCXZbsp3yK8orp6Eif0omg (PPT - Hindi)

You may use the content as it is or download and modify them to suit the students requirements.

If you feel any major modifications or additions are carried out by you in the form of adding any new activity, presentations, videos etc. we request you to send the modified version to submitcontent@evidyloka.org for enabling upload the modified version.

The worksheets of the lesson can be accessed from the worksheet tab.

Kindly rate the lesson plan and share your suggestions and comments on the lesson plan in the comments box below. Your valuble suggestions and comments will help us to improve the content.

Videos

[Author - Kripa S]

https://www.youtube.com/watch?v=qfvHMyTXJF4( Basics of Light)

https://www.youtube.com/watch?v=rCznJTP3cVQ (light and shadows)

https://www.youtube.com/watch?v=Jo1UZgGTtUs (properties of light)

[Contributor - Sasmita Kant Maurya]

Lesson Plan version 1.1 videos

https://www.youtube.com/watch?v=3j3zSD0ca8E (Different sources of light)

https://www.youtube.com/watch?v=WrQsq8s8XzU (Light travels in straight line)

https://www.youtube.com/watch?v=WB0oqvJD-30&t=273s (reflection property of light)

https://www.youtube.com/watch?v=Poq3u7BFhqk (nature of image formed by plane mirror)

https://www.youtube.com/watch?v=fWiZKpdHA1c (Different types of mirrors)

https://www.youtube.com/watch?v=n_U4Zx3cm5E&t=8s (properties of lenses)

https://www.youtube.com/watch?v=uucYGK_Ymp0 [1:30 minutes to 1:33 minutes, white light passing through prism]

https://www.youtube.com/watch?v=_z7BDab3N7w [from 3:40 minutes, merging of 7 colours into a single colour]

Images

[Author - Anu Nived]

https://img.clipartfest.com/bbe58854c8517081d6e0b21c3c69415d_lighthouse-paintings-at-night-lighthouse-at-night-clipart_1598-1129.jpeg (light house)

https://www.sciencelearn.org.nz/system/images/images/000/000/046/full/Lake-reflection20150805-30600-1t8rqoj.jpg?1447040426 (reflection of light)

http://maggiesscienceconnection.weebly.com/uploads/5/1/0/5/5105330/__524973087.jpg (convex, plane and concave mirror)

http://www.ekshiksha.org.in/images_light_VII/figure_18.JPG (torch reflector)

https://3.imimg.com/data3/OB/HP/MY-2271920/newton-s-colour-disc-500x500.jpg (newton's color disc)

Activities

[Author - Arshea Bimal, Kripa S]

1. https://www.youtube.com/watch?v=qjZFJ88sEhE (Tracing path of light)

2. Take a stainless steel spoon. Bring the outer side of the spoon near your face and look into it. Do you see your image in it? Is this image different from what you see in a plane mirror? Is this image erect? Is the size of the image the same, smaller or larger?

3. https://www.youtube.com/watch?v=HSbMMdoGIW4 (rainbow)

[Contributor - Sasmita Kant Maurya]

Lesson Plan version 1.1 activities

1. Ask the students to stand in pair where one is the ‘body’ while other one is the image. Ask them to stand facing each other and pretend that there is a mirror between them. The ‘body’ should raise his/her right hand and at the same time the ‘image’ should mimic the body, but like a mirror image. So, the ‘image’ should lift his/her left hand. This activity should explain the lateral inversion of image in a plane mirror. Ask the ‘body’ to touch his nose with his left hand- see what the ‘image’ does. Repeat the activity till all the children understand lateral inversion.

2. Ask the students to make a Newton’s Disk with crayons, cardboard and white paper. They can test it for themselves how seven colours appear as white colour.