Grade 4B EVS

Ch- Force, Work and Energy

Date: 7.2.2022

Topics taught:

• Recapitulation of the term- Force- Push/Pull.
• Explained the definition of Force with examples of Push/Pull using a PPT.
• Students shared everyday examples of Push/Pull.
• Explained the effects of force with examples given in PPT.
• Completed the activity given in PPT-To identify Push/Pull applied in the given pictures.

Homework:

Activity: Effects of force:

 Material required: (to be sourced by the students) flour, water, dish

 (Note: materials may vary as per students’ discretion)

 Ask the students to take some flour in a dish and add little water to it.  

 Mix the mixture by applying force with your hands.

 Knead the mixture till and make objects of different shapes (small dish, bowl or any other object of their choice).   

Share your experience/observations in the next class.

Kindly complete the activity to understand the Effects of Force and send the photos by mail to: snehal.pisnadiad@gmail.com

Date: 8.2.2022

Topics taught:

• Recapitulation of examples of Push/Pull.
• Explained Work and Work done with examples using videos.

Homework:

Kindly practice the Worksheet for the topics taught and click the screenshot of the worksheet with answers and your score. 

Send the screenshots by mail to: 

snehal.pisnadiad@gmail.com

https://www.liveworksheets.com/jh1742578yj

Date: 9.2.2022

Topics taught:

•  Recapitulation of Work done/Work not done, comparison of amount of work done(more/less) by discussing some situations.
• Explained the term - Energy.
• Explained the forms of Energy- Solar, Electrical, Sound, Heat energy and Chemical energy.

Homework:

1. Practice the questions in the given worksheet:

https://www.liveworksheets.com/xu1987585dk

2. Prepare a chart on Forms of Energy (Solar, Electrical, Heat, Chemical energy only) with ONE example. 

Sample pictures are given below. You can use your own creativity.

Kindly mail the photo of your chart along with the notebook work in a single pdf file.

(Note- Textbook Q/A will be discussed on Friday)

Date: 11.2.2022

Topics taught:

•   Discussed textbook exercise.

Notebook Work:

New words:

1. electrical
2. appliances
3. geysers
4. molecules

New terms:

1. appliances: a piece of equipment for a particular purpose in the house
2. molecules: the smallest unit into which a substance can be divided without changing its chemical nature

Textbook Exercise:

Q5. Answer the following questions in 3 to 5 sentences.

a. How do plants prepare their food? 

Ans: Plants prepare their own food with the help of this sunlight. The process is called Photosynthesis.

b. What do you mean by energy?

Ans: The ability of a body to do work is called Energy.

c. State two factors on which amount of work done depends. 

Ans: The two factors on which the amount of work done depends are:

1. The amount (strength) of force applied on the object  and

2.The distance through which the object moves.

Workbook work:

Click on the link given below for the workbook answers

Workbook answers