The document discusses the concepts of mass, volume, and matter, including their definitions and measurement tools. It provides examples of measuring mass and volume for various objects, like vegetables and liquids, and introduces units of measurement such as kilograms and liters. Additionally, it presents a narrative about a student helping classmates with problem-solving related to volume and mass.

1. What is the time now !

2. Did you know .. Who was the tallest man in the world at 2015 ?

3. Have you imagined.. How tall will you be with him ?

4. So .. How could I know my tall ?

5. To calculate an angel in a Math's. Problem .. What
can I use ?

6. But .. How can I know my weight !

7. When you suffer from high body temp. , How could you know your
Temp. ?

8. These last examples were about ..These last examples were about ..

9. What are these measuring tools used for ?
They are used for measuring Mass .
So .. What is Mass ?
What are these measuring tools used for ?

10. Look at this picture .. And say what will happen ?

11. And this is the idea of Balance

12. So , Mass is ..
• The amount of matter of an object .
• Example :

13. What are these measuring tools used for ?
They are used for measuring volume .
• Look around you .. What can you see …?
 Your Classmates
Your desk
Their desks
Your smart board …. Etc.
 All of these things .. have a space or not ?
So … Volume is :
The space occupied by a matter .

14. But, Dear student What do you know about
Matter !

15. Matter
Matter :
It is every thing that:
1. has a mass .
2. Occupies a space = has Volume .

16. If you went to the Green Grocers and you wanted to buy :
Tomato – Carrots - .. Etc.
What will you buy ? How many quantities ?

17. Large Mass is measured by :
Kilo gram (Kg.) or Gram (gm.)
•1 Kilo gram (1kg.) =1000 gram (gm.)
•Example : 1 kg of Onions.

18. Amira was 8 years old .
She used to go to her session of swimming after school every day .
One day … she went home but she surprised !
She didn’t find her golden ring in her hand !
She felt sad , and she cried a lot 
Her dad promised her to buy another one ..
And they went to the jewelry
She chose that ring .. But she asked the man
How many Grams of this ring ?
So .. Can you tell her how will the man know?

19. You can measure the mass of small objects like Diamond
by :
Sensitive balance

20. To know your length .. What will you use ?

21. Length is measured by :
Graduated Ruler

22. Length units are :
• Meter. (m)
• Kilo meter (km)
• Centimeter . (cm)
• 1 Meter = 100 Cm.

23. Assessment 
• Let’s play :
• The Game name is : Who Am I 

24. Who Am I 
 I Can Measure your length … So Who am I !
 Do I have units of measuring ?

25. Who Am I 
I can tell you the mass of your ear – rings.
 Do you know my unit ?

26. Who am I 
 I am a unit of measuring So heavy objects like Iron .. Who am I !

28. Lesson (1) p. (2) Volumes .

29. The story of a CUBE
• Mohamed was a good pupil at grade 3 .. He always get high marks .. He was
loved by all his teachers and classmates.
• One day his teacher gave him a problem to solve .. But he didn't .. He felt sad ..
So can you help him to solve it and feel Happy again 
• The problem was : Calculate the volume of this Cube .

30. Activity (3) p.(11) : Calculating the Volume of a
Regular solid shape .

31. Let’S help Ahmed to know the volume of his car .. Will
you help !

32. Activity (4) p.(11) : Calculating the Volume of
irregular solid shape .

33. Be aware of your Eye level while calculating !

34. Can you find the volume of the irregular object
with another method !

35. Have you ever heard about Omak Rock !

36. Assessment 

37. To do this Marvelous Molten Chocolate Cake .. You must use :
¼ liter of oil .
¼ kg. of butter .
¼ kg. flower .
5 eggs .
½ Liter of Milk .
60 gm. Molten chocolate.
So .. How can you measure these
Liquids to do this cake ?

38. So, Have you noticed your Mum while preparing the
cake .. What does she use ?

41. Volumes Types
1.Liquid Volumes
• Like water – oil – H.cl acid
• Its measuring units are :
1. Liter
2. Milliliter
1 liter = 1000 cm3

42. Volumes Types
•2. Solid Volumes
• Like :
1. Regular volumes
2. Irregular Volumes
Its measuring units are :
1. M3 or cm3