The experiments from this media package thematically belong to subexperiment “A2 We store heat – From heat store to molten salt” from Experimento | 10+. They have been written especially for the lower grades at secondary schools. The four subexperiments “Water stores heat (1),” “Water stores heat (2)”, “Heated water is mixed with water at room temperature,” and “Does a metal spoon conduct heat?” each include illustrated instructions on preparing and conducting the experiment. Different assignments on the experiment are presented; variation is possible at any time.
Die Materialien sind auch in deutscher Sprache im Lernobjekt "Experimente zu Wärme" verfügbar (siehe "Auswahl verwandter Medien").
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Inhalt - Heat: Temperature and heat experiments (teacher information) In the lower classes of secondary schools, students in STEM subjects also grapple with the topic of heat. Learning through research can be encouraged with the following four subexperiments: 1. Water stores heat 1 2. Water stores heat 2 3. Heated water meets water at room temperature 4. Does a metal spoon conduct heat? The teaching methods provide teachers with all the important information for using the experimentation instructions in class: relevance to the curriculum, scientific background, and possibilities for variation. They also provide information on conducting the experiments and the answers to the assignments. Notes: • Observe the safety information in the instructions as well as the applicable safety guidelines for your school. All materials mentioned in the instructions will have to be purchased directly from commercial sources.
- Heat 1: Water stores heat 1 (student instructions) The students will heat water. They will measure the temperature and record their results in a table and a time/temperature graph. The instructions first include a photo and a list of the required apparatus and materials. Text and pictures explain the preparations for the experiment step by step. Then several assignments are presented: The students should express their guesses, conduct the experiment, and note down their observations.
- Heat 2: Water stores heat 2 (student instructions) The students will heat water and allow it to cool again. They will measure the temperature and record their results in a table and a time/temperature graph. The instructions first include a photo and a list of the required apparatus and materials. Text and pictures explain the preparations for the experiment step by step. Then several assignments are presented: The students should express their guesses, conduct the experiment, and note down their observations.
- Heat 3: Heated water is mixed with water at room temperature (student instructions) The students will learn the principle of heat transfer by mixing heated water with cooler water, measuring the temperature, and recording their results in a table. The instructions first include a photo and a list of the required apparatus and materials. Text and pictures explain the preparations for the experiment step by step. Then several assignments are presented: The students should express their guesses, conduct the experiment, and note down their observations.
Heat 4: Does a metal spoon conduct heat? (student instructions) The students are given an understanding of the transfer of heat through heat conduction. A metal spoon is heated. The different temperatures of the spoon are demonstrated using pieces of wax, which melt at different rates. The instructions first include a photo and a list of the required apparatus and materials. Text and pictures explain the preparations for the experiment step by step. Then several assignments are presented: The students should express their guesses, conduct the experiment, and note down their observations.
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