Wrapping Up Our Nervous System Unit

Science

Nervous System Week 5: Hearing and Sight

This week we learned about our eyes and ears and how they send signals to our brain.

This is how we hear:

This is why we shouldn't stick anything, like cotton swabs into our ears, because we might damage parts of the middle ear.

This is how we balance:

If you spin around fast, motion sensors send conflicting messages to the brain, which can make you feel dizzy. This is caused by fluid that moves around inside of the canals.

Experiment #1, We spun around really fast and then STOPPED. We experienced what it feels like to be dizzy.

Experiment #2, We walked on a tight rope and saw the role our eyes take in combination of our ears in helping us to balance. We also tried it after spinning around.

Owen walking on the tightrope.

Landen on the tightrope.

Experiment #3, We followed this maze around and around, until we got to the middle.

Landen on the maze.

Fun Fact: These are three of the tiniest bones in the human body!

Experiment #4, We took an eye test. First we covered one eye, then the other, then we opened both of them. We learned that it is much easier to read the chart with both eyes open. We all have great vision!

We used a letter chart, a kindergarten chart, and an E chart.

Landen goes up first.

Now it is my turn.

We are all so excited!

We also learned about color blindness and how more boys than girls have color blindness.

They are so cool!

Tech

Landen: My walking robot came with paper and instructions to draw and build my own parts for my robot. This is what I made.

I like it!

Kaylee:

I submitted my airplane assignment on Canvas. I also read about the innovation journal, which is something to print out and fill out all the questions about innovating. Innovating means figuring out a way to change something and make it better.

I printed the innovation journal pages and began working on the first section.

Electives

Building Simple Machines (Landen): I made a flywheel cruiser that I can wind up so it drives around.

Here is my finished project.

Arts and Crafts (Kaylee):

I made a second granny square. Next week I will be attaching them and finishing my purse!