HEAT AND TEMPERATURE

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What is heat? Heat is the transfer of thermal energy from something hotter to something colder.

 Temperature: tells us how hot or cold an object is.

We measure temperature with an instrument called thermometer.

The unit used to measure temperature is degrees centigrade Cº

CONDUCTORS AND INSULTATORS

Conductors transmit heat very well.

Insulators do not transmit heat well, plastics, wood and ceremics.

HOW TEMPERATURE AFFECT OBJECTS.

Explain the next chages caused by the heat:

• Temperature increase.
• Dilatation.
• Change of state.

TOPIC 8 ENERGY

WHAT IS ENERGY?

Something has got energy if it can make other thing move or change position.

THE MOST COMMOM FORMS OF ENERGY ARE: (write and explain)

1. .
2. .
3. .
4. .
5. .

TRANSFORMATION OF ENERGY

Energy can transform from one forn to another.

Write to examples following this model:

Mechanical energy from the wind in transformed into electric energy 

ELECTRICITY PRODUCTION


Draw how electricity is produced and transported, you can get some ideas from page 88, try not to copy, use you own ideas.