The document summarizes experiments conducted by students to learn about light with their Comenius partners from other countries. They investigated whether light is heat, how lenses work, if light can bend, if light can pass through different materials, what color light is, and if combining all rainbow colors makes white. The students found that light is heat, lenses can magnify objects, light follows the path of water, transparent materials let light pass through but opaque materials do not, white light is all the colors of the rainbow, and combining all rainbow colors produces white.

1. Learning About Light with our Comenius Partners CEIP Narciso Alonso Cortés Valladolid Spain

2. Is Light Heat? We used observation to answer the question that light IS heat because when we are under the sun we can feel the heat. Hypothesis: Experiment: Light is Heat We carried out the investigation suggested by the Italian team.

3. Conclusion:Thanks to the Italian team we know that Light is heat, so light is a form of energy. We followed the instructions step by step and… … we checked that our hypothesis was correct.

4. Work we did during the investigation.

5. As light is heat, in year 6, we made SOLAR COOKERS

7. And we cooked and ate delicious pizzas.

8. How do lenses work? We observed different objets through convex and concave lenses.

9. As the Romanian team suggested, we made lenses from plant nutrition balls. We followed the instructions step by step and… At the beginning the balls were small, hard and bright coloured.

10. Half an hour later, Four hours later One day later, they were bigger, soft and light coloured.

11. Hypothesis: Experiment Will the balls act like lenses? 12 of the 16 children thought that the balls would act like convex lenses. We read the newspaper through the balls and we confirmed that we could see the letters bigger than they are.

12. But when we looked through the ball at an object at a distance from us, we could see the object up side down. Conclusion:Thanks to the Romanian team we know that the balls behave as convex lenses when we look at a nearby object and they behave as our eyes when we look at a distant object.

13. Work we did during the investigation.

14. Can light bend? Hypothesis: We know that light travels in straight lines, so we think that light cannot bend. Experiment: Curving light We carried out the investigation suggested by the Slovenian team. We followed the instructions step by step and…

15. We could see that the light followed the path of the water.

16. Then we made a ‘light fountain’ from fishing line. Conclusion:Thanks to the Slovenian team we know that total refraction takes place inside the water and in the fishing line. That’s the reason why the light didn’t leave the path of the water or the fishing line.

17. Work we did during the investigation.

18. Can light pass through all kinds of objects? Hypothesis: We think that light cannot pass through all kinds of objects because if we put our hand in front of a source of light, it makes a shadow. Experiment: The two candles We carried out the investigation suggested by the French team.

19. We used a CD box. First, we put a candle in front of the black part of the CD box and the other candle behind, and… … we couldn’t see the candle that was behind the box.

20. Then we put one of the candles in front of the transparent lid of the box and the other behind it, just in a symmetrical way. When we lit one of the candles we could see the other one as if it was burning too. Conclusion:Thanks to the French team we know that transparent objects let light pass through them and opaque objects don’t let light pass through them.

21. Work we did during the investigation.

22. What colour is light? Hypothesis: We think light is white or yellowish. Experiment: The rainbow We carried out the investigation suggested by the Scottish team.

23. We followed the instructions step by step and… … we realised that our hypothesis was wrong. Conclusion:Thanks to the Scottish team we know that when white light changes media it scatters and we can see all the colours of the rainbow.

24. Work we did during the investigation.

25. Will we see white colour if we put all the colours of the rainbow together? Hypothesis: We think We WILL see white. Experiment: Colour Wheels We carried out the investigation suggested by the Slovakian team.

26. We followed the instructions step by step and… … we confirmed that our hypothesis was correct. Conclusion:Thanks to the Slovakian team, we know that white light is made up of the seven colours of the rainbow.

27. Thanks to our Comenius partners, now we know a lot of thinks about light. Finally, we sang the ‘Rainbow Song’ Rainbow over Valladolid