Name two cold objects in your surroundings. Why you call them a cold object?
Important Questions on Matter is Everywhere
Heat is not matter instead it is _____.
Measure the temperature of water in normal conditions. If you add the following substance to the water, do you find any difference in temperature? Predict and verify.
| Water temperature in Celsius | Water (100 ml each time mixed with two tablespoonful of each) | Prediction | Temperature of the solution immediately after mixing the substance |
| Glucose | Decrease | ||
| Washing powder | |||
| Baking soda | |||
| Sugar | |||
| Common salt |
Do you find any change in temperature before and immediately after mixing the above substances in water? If yes, what could be the reason?
Look at the picture given below and write H against the objects that are hot and C against those that are cold.
The temperature of a steel rod is . Then it's temperature in is
Write the quadrants in which the following points lie:
Look at the picture given below and write H against the objects that are hot and C against those that are cold.
Look at the picture given and write H if the object is hot and C if the object is cold.
Look at the pictures given below and write H if the object is hot and C if the object is cold.
