Which material is the best conductor of heat?

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3rd and 4th class recently carried out an investigation to identify which material is the best conductor of heat.

We tested spoons made from different materials by attaching a bead to each one using butter and placing them in warm water. We predicted which material would conduct heat the fastest.

We watched carefully to see which bead would fall off first as the heat travelled up the spoons and melted the butter. We learned that some materials conduct heat better than others and that metal is a good conductor of heat.

We really enjoyed making predictions and observing the results!