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Food and the Digestive System

Today, we learned about the different types of teeth. We started by biting a piece of apple and thinking about the teeth we used. We referred to diagrams of the mouth and talked about the teeth using their scientific names. We then did the same activity with some crusty bread. After that, we completed a series of investigations about our own teeth using mirrors, thinking about the purpose of each of the teeth in our mouths and then why carnivores, herbivores and omnivores have different types of teeth. Lots of great thinking shown and knowledge gained today.

Healthy Teeth Posters

We have been learning about how to keep our teeth healthy. We learned so many ‘top tips’ that we decided to make eye-catching posters to share our knowledge.

Toothpaste Investigation

Today, we started our investigation into how effective toothpaste is in preventing tooth decay. We will compare the effects of toothpaste and vinegar on an eggshell. We started by talking through the method, how we will make it a fair test and made our predictions. We then started the investigation by covering 2 eggs in toothpaste. We have decided that we’d also like to know whether the amount of fluoride in toothpaste makes a difference to the effects, so we chose 2 toothpastes with different amounts of fluoride in. We will leave them overnight and look at the results tomorrow.