Discussion about the heat for grade 7 class

Heat PPt

1. WELCOME TO SCIENCE 7

2. PRAYER

3. PRAYER Dear Lord, We gather here today with open hearts and minds, ready to explore the wonders of Your creation. Grant us the wisdom and curiosity to understand the science that governs our world. May we use this knowledge to appreciate the beauty and complexity of the universe You have made. Guide our thoughts and actions, and help us learn and grow together in harmony. Amen.

4. WELCOME TO SCIENCE 7

5. My name is PABLITO D. ESPAÑOLA Sir Pabz or Sir Espanola

6. CLASSROOM RULES

7. REVIEW TIME!

8. Procedure 1. Pour each beaker in hot, cold, and tap water. 2. Place one ice cube on each surface. 3. Using a thermometer, measure and record the initial temperature of each surface. EXPIREMENT TIME!

9. Based on the experiment, which among the three will cause the ice to melt the fastest? Why do you think that is? Which among the three will cause the ice to melt the slowest? What might be the reason? Question

10. How about the temperature of the three waters? Will there be any changes after the ice is placed? If there changes, typically, what will happen to their temperature? How about the temperature of cold water and tap water? Question

11. TEMPERATURE AND HEAT

12. After one hour, the learners of grade 7 must be able to: Intended Learning Outcomes a Differentiate between heat and temperature Describe how a thermometer works; Convert one thermometer reading on a scale to another scale; Compare the specific heat of substances; Participate actively in class discussion; and Take and pass the quiz with a mastery level of 80%. b d e f c

13. THERMOMETER It is used to measure the temperature of a body. Temperature scales are based on a standard unit called degree. In many countries, temperature is measured in degrees Celsius

14. THERMOMETER In reading the temperature in a thermometer, simply look for the mercury thread or the red one, then analyze which number do it points.

15. MATTER made up of tiny particles that are in constant motion as the particles are always moving, they have kinetic energy. Particles that move faster have more kinetic energy than those with less speed.

16. MATTER

17. TEMPERATURE The higher the temperature of a body, the faster the movement of its particles and the greater their average kinetic energy.

18. TEMPERATURE In Celsius Freezing point is 0 ˚C Boiling point is 100˚C Fahrenheit Freezing point is 32˚F Boiling point is 212 ˚F

19. TEMPERATURE It is the degree of hotness or coldness of a body. It can be measured using three scales: Celsius, Fahrenheit, and Kelvin.

20. CONVERT TEMPERATURE Fahrenheit to Celsius Celsius to Fahrenheit

21. CONVERT TEMPERATURE Fahrenheit to Celsius Example 1: Convert 78°F to Celsius (°C),

22. CONVERT TEMPERATURE Fahrenheit to Celsius Example 2: Convert 50°F to Celsius (°C),

23. CONVERT TEMPERATURE Fahrenheit to Celsius Example 3: Convert 100°F to Celsius (°C),

24. TRY THIS ONE! Fahrenheit to Celsius Example 4: Convert 212°F to Celsius (°C) Example 5: Convert 86°F to Celsius (°C)

25. CONVERT TEMPERATURE Celsius to Fahrenheit Example 1: Convert 86°C to Fahrenheit (°F)

26. CONVERT TEMPERATURE Celsius to Fahrenheit Example 2: Convert -5°C to Fahrenheit (°F)

27. CONVERT TEMPERATURE Celsius to Fahrenheit Example 3: Convert 10°C to Fahrenheit (°F)

28. TRY THIS ONE! Celsius to Fahrenheit Example 4: Convert 40°C to Fahrenheit (°F)

29. TEMPERATURE the standard unit of temperature is the kelvin. the lowest possible temperature a substance can reach is called absolute zero , which is 0 K. To convert a temperature value from °C to kelvin, we simply add 273.15.

30. Heat is a form of energy that flows from a warmer material to a colder one. Heat is the energy that is transferred from a body with a higher temperature to a body with a lower temperature. HEAT

31. The specific heat of a material is the amount of energy it takes to raise the temperature of 1gd the material by 1 deg * C Specific heat can be used calculate the heat lost or gained by a substance. The heat lost or gained by a substance is equal to product of its mass (m) multiplied by its specific heat (c) and the change in temperature (Delta*t)

32. Convert the following temperatures. 1. 88 Fahrenheit to Celsius 2. 79 Fahrenheit to Kelvin 3. 44 Celsius to Fahrenheit ACTIVITY TIME!

33. QUIZ TIME!

34. EXAMPLES OF CONDUCTORS copper gold aluminum

35. EXAMPLES OF INSULATORS fabric wood foam

36. What is heat? How does heat flow in solids? What are the different sources of heat? CHECK FOR UNDERSTANDING