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3rd and 4th Class: Science - Heat

Let's heat it up!

  

Múinteoir John's lesson today was all about Heat.  Let’s have a quiz to see what you learned. 

  1. Heat and electricity are forms of __________________. 
     
  2. To find out how hot or cold something is, you measure its _______________ using a _______________. 
     
  3. Name 2 natural sources of heat?
    ________________________
    ________________________
     
  4. Name 2 man-made sources of heat?
    ________________________
    ________________________
     
  5. Heat is formed as ____________ and _____________ move around inside an object.  The faster they move the hotter the object is. 

    a) Blood and bones b) Atoms and molecules c) oxygen and carbon dioxide
     
  6. Which 4 of these items are good conductors of heat? 

Utterly Buttery Heat Conduction Experiment

Objective - To find out what materials are the best conductors of heat. 

Materials:  

  • Hot water
  • Butter
  • metal spoon, plastic spoon, wooden spoon. 
  • 3 sequins or beads
  • Bowl or cup

Method

  • Put a dollop of butter onto each spoon
  • Put the spoons into the bowl
  • Stick a sequin to each bit of butter
  • Pour the hot water into the bowl. (Get an adult to do this)
  • Wait. Note results.

Spoon    Observations   
Wooden  
Plastic  
Metal  

The best heat conductor is... 

The worst heat conductors are... 

 

Send us pictures or videos of what you have done. Ask your parents to help you send them to rte.ie/learn

Cool Down from the Heat with an Icy Treat

Yogurt Sorbet

A tasty and fresh dessert recipe that is suitable for all the family and those who suffer from allergies or intolerances. Free from dairy, eggs, wheat, gluten, sugar & nuts. 

Ingredients - Serves 12 Adults

  • 500ml / 17 fl oz. of plain, dairy-free yoghurt
  • 315g / 11 oz. of fresh fruit, diced
  • 2 teaspoons of honey

Method

  1. Freeze the yoghurt until it begins to get firm
  2. Transfer the yoghurt into a blender *Ask an adult for help with this*
  3. Add the diced fresh fruit and the honey to the blender too
  4. Blend until smooth
  5. Put in a freezer proof container and freeze for a minimum of 2 hours
  6. Eat it! 

Serving Suggestions: Serve with sliced fresh or canned fruit

Credit:  safefood.eu

Icy Maths Maze 

Can you get the Mother polar bear to her cub by only walking on certain icebergs?  Start with the sum that is equal to 1 and then 2 and so on until finally you will reach the sum that equals ten and then the cub.  Good luck! 

Send us pictures or videos of what you have done. Ask your parents to help you send them to rte.ie/learn

Answers – 1) Energy 2) measure its temperature with a thermometer 3) sun, fire, lava, hot springs 4) radiator, toaster, cooker, tv, computer, chargers, candle, light bulbs, hair dryer, clothes dryer and many more (ask an adult to check your answer if it's not here) 5) atoms and molecules 5) Conductors -  metal – nail, spoon, key, coin. 

Maze solution