(1 million grains would be 25 kg, so 1 kg is 1 million / 25 = 40 000.) After a few suggestions, give a clue – that there are about 1000 grains in 25 g. Ask the students to guess how many grains of rice there are in the bag. Introduce the topic and the purpose of the session, using a 1 kg bag of rice. Sequence of activities Demonstration and introduction An atom retains the property of the element.Atoms are the smallest parts of elements.Matter is made of atoms too small to be seen with the naked eye.In this activity, students watch a simple demonstration and carry out a practical task in small groups to develop their thinking about atoms as a basic unit of matter.
RSC Yusuf Hamied Inspirational Science Programme.Introductory maths for higher education.The physics of restoration and conservation.
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