Year 4 have been learning about Roman Numerals. The children used toothpicks to form Roman Numerals and create calculations

Year 3 have been busy petrologists (rock scientist)  this half term. First, we investigated the properties of a selection of rocks by testing their hardness, appearance, density and finally if they reacted to a drop of weak acid (vinegar). 

We then learnt  about three different rock types and how they form. We used layers of bread to make a sedimentary rock complete with a fossilized sea creature. The class looked at how igneous rock can cool quickly and form obsidian or slowly to form pumice (the only rock that floats).

We also used play-doh to experiment how heat and pressure can change sedimentary and igneous rocks into a new type of rock called metamorphic.

States of Matter – Chemistry

Investigating the properties of liquids

Year 4 carried out an investigation today to help Kevin, a hotdog stall owner.  We tested three types of ketchup to see which was the runniest.  We then tested the taste of each ketchup to see which was the tastiest.

To test this we squirted each ketchup at a giant hotdog.  Ketchup C was so runny it got on the blinds!  Ketchup B ran down to the ground but ketchup A stayed on the hotdog.

Volunteers tasted each ketchup, it was decided that ketchup A tasted best.

We think Kevin should pick ketchup A.  This ketchup is the most expensive though, so if Kevin cannot afford this he could pick ketchup B, which was our second choice.