Acids and Carbonates

Today in science we learned about acids and carbonates. We worked in pairs to combine different substances and recorded our observations on a table in a shared document on Google Drive.
Here are the substances we had: washing powder, chalk, lemon juice, eggshells, orange juice, tea, sugar, vinegar, baking powder.

We experimented and observed, recorded and checked. Then we were able to decide what happened when we mix an acid and a carbonate - they make gas! We knew this because all the acid and carbonate mixtures bubbled or fizzed (although the eggshells didn't work well - we think they needed to be ground up more than we could manage) showing the gas that was created.
Here is Jakob's diagram of which substances were acids and which were carbonates:

Can you spot the two tricky ones that were neither an acid or a carbonate?!

Ben and Charlotte's Hen house

Ben and Charlotte have been making a hen house today.  They built these sides from pieces of wood.  They are going to get more wood to build another side and a roof.  They want to hinge a side so it opens easily for the hens to go in and out of.

We look forward to seeing it complete.

 

We used thin pine wood, little red nails, and silver nails, a hammer and a saw.  When we were making the sides Charlotte cut her finger with one of the red nails. 

Bubble Boats

Libby's Bubble Boats

Sam's wheelchair

In reading we have been learning how to use Groupboard, an app on our tablets.
This time we used it for sharing our ideas aboout a boy called Sam who has brittle bone disease. Our groupboard is some of the things he might like on his wheelchair. Sam was also an inventor, the wheelchairs the hospital gave him didn't work as well as he wanted so he made one that could do mostly anything.