These are some experiments from our learning about density. We discovered what liquids were denser than others by the way they floated at different layers. We also suspended an egg in a glass by creating a liquid which it floats on (salt water) and putting a liquid (water) less dense than the egg on top of the salt water. Density is how compacted the atoms and molecules are in matter.
We asked the question if color affects the burn time of candles. Our experiment didn't give us a clear answer so we decided we would need to do an experiment using a greater number of candles and colors.
Another experiment we did to help learn the scientific investigation process was investigating what solutions would clean a tarnished coin. Coke and vinegar were clear winners in this so pull out your old coins and begin cleaning!
In this experiment with Mrs Graham our Bible in Schools teacher we learnt about physical changes. The small dense gummy bears when put in water dramatically changed size as they absorbed the water surrounding them. A physical change is a change when no chemical change happens, only physical changes such as state or shape.
Doing these experiments were really fun and interesting. I was quite surprised with the cup experiment because the tomato sauce went straight to the bottom.
ReplyDeleteThe gummy bear experiment was also verry fun the gummy bears grew lots.
Amy