Explanation

LI Identify key words/structure of explanatory text

SC Introduction - definition of the topic that you are writing about -describe the topic explanation - how something works or why something happens conclusion technical words key words

LI: Locate action verbs and conjunctions, and identify the type of tense used in explanations.

SC: •create a list of action verbs •use action verbs in explanations •use simple present tense

•use conjunctions in our explanations

Explanation- Why does Baking soda and vinegar fizz when mixed together?

The baking soda and vinegar experiment is one of the most popular and easiest experiments. This is an experiment actually has two reactions happening very quickly. This experiment is called a multi-step reaction.

If you watch the reaction you will see that it bubbles into thick white foam.The bubbles you see from the reaction come from the carbon dioxide escaping the results. Carbon dioxide is heavier than air so when it over flows it almost flows like water. Carbon dioxide is the gas that we breath out. Whats left is a dilute solution of sodium acetate in water.

Baking soda has sodium bicarbonate in it. When it mixes with vinegar (which is an acid) it goes into a reaction and creates carbonic acid.

By Nicola, Erica and Kimberly

**My Learning Targets!**

**My next step is:** **Write a bigger explanation.** **I will achieve this by:** **Using more action-verbs, conjunctions, describing words and do more research.** **Date achieved/signed:** **Thursday 26th May** **Jenna**