Keywords: Grade One 100 words

Word count: 100 word composition

This article applies to: the first grade of primary school.

Composition source:

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This composition is about the first grade of primary school 100 words. The title is "Essays on Science". Everyone is welcome to contribute enthusiastically. A few days ago, we did an experiment at school. The materials prepared are: seven parts of salt, seven parts of baking soda, two beakers and a stirring rod with little water. Our question is: How many parts of salt and baking soda can be dissolved in 20 ml of water? The plan is as follows: 1. Put 20 ml of water into two beakers. Twenty-seven portions of salt and baking soda, 2g each, in two piles, one is salt and the other is baking soda. Third, add baking soda and salt into the water one by one until they can't dissolve.