When we talk about heat and temperature, we need to know how we measure them. Here’s a simple breakdown:

Temperature

• Celsius (°C): This is the unit we use most in daily life. For example, water freezes at 0°C and boils at 100°C.
• Kelvin (K): Scientists mainly use this one, especially in physics and chemistry. It starts from absolute zero, which is -273.15°C.

Heat

• Joules (J): This is the standard unit for measuring heat energy. One joule is the energy used when you push with one newton of force over one meter.
• Calories (cal): You’ll often see this in food and nutrition. One calorie is the energy needed to raise the temperature of one gram of water by one degree Celsius.

Knowing these units helps a lot in understanding heat and temperature better!