Floating and Sinking

Our Science experiment

On the 29^th of January 2016, we did science experiments on floating and sinking.

First we did an experiment to see if an orange would sink or float and then would it float or sink without the peeling. We had to predict if it would sink or float.  It floated with the peeling on and sank with the peeling off.

Next we got into groups and we picked out objects that we wanted to put in the bucket of water to see if the objects were heavier in air or water.

First, we weighed a banana in air using a spring balance. It weighed one hundred and fifty grams. We weighed the banana in water and it weighed fifty grams. The banana weighed more in air.

Next we weighed a bottle of juice. It weighed two hundred grams in air and one hundred grams in water.

Last of all we weighed an orange. In air it weighed eighty grams and in water it weighed zero grams.

So objects weigh more in air because the force of gravity pushes the object up in water.