January Science Experiments

We looked at blood under the microscope. None of the boys were willing to prick their own finger so I ended up doing it.

We listened to each other’s heartbeats using the stethoscope. Little did I know when I bought that stethoscope in 1997 for nursing school that it would still be getting used 20 years later!

We used balloons to measure our lung capacity. We took really big breaths
and then breathed all the air out into the balloons. Not surprise that Cameron has the biggest lung capacity, followed by me, then Fritz, and Adrian has the smallest.

We moved our joints in all the different ways joints move.

We dissected a chicken wing, paying attention to the skin, fat, muscles, and bones and how they connect to each other.

We demonstrated how quickly bacteria multiply. We started with a sheet of
paper representing the parent bacterium. We ripped it in half showing that one
becomes two in 15 minutes. We ripped those in half making four in 30 minutes.
Then we ripped those in half making eight in 45 minutes and so on until after 150 minutes we would’ve had 1,024 bits of bacteria confetti. We graphed the exponential growth.

We sat still and contemplated the organ systems that were working inside our bodies.

We examined insect wings and looked at them under the microscope. (This is a cockroach wing. It’s strangely pretty.)

We made a to scale timeline of the geological time of the earth. It stretched all the way across the entire house. The beginning of time is at the door. The little circle at the bottom is the appearance of humans.

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