We received these two excavating kits in the mail this past week, and Kim and Luke have been very eager to start working on them. In fact, I told them they could open them on Saturday...well, I was awakened at 8 am with news that the kitchen table was all ready to start their projects.
Mark and Grace did kits like this years ago and loved them, so I knew they would be a hit with Kim and Luke.
This is our type of schooling...good books, notebooking and experiments. It's very hands on and the kids love it. (So do I) We do tend to be pretty science geeky around here, so once we get started on a subject we generally go all out.
Today, after reading the first 2 pages of the book Forces and Motion, the kids did their note booking page,
This led to watching Bill Nye the Science Guy on Youtube...not just about forces and motion but we also watched gravity. (we do get sucked into more and more and more in the science department.
We then found some experiments to do. (I said we really get into science....today it lasted about 2 hours-after only reading 2 pages from the first book)
The law of inertia, Isaac Newton’s First Law of Motion, states that an object tends to stay at rest or in straight line motion if no outside force acts upon that object. It can also be described as the resistance of any object to change in its motion. Using inertia, we can drop a penny into a cup without touching it.
Next we removed a coin from the bottom of a pile of coins without disturbing the coins on top.
From Steve Spangler:
How Does It Work?
The key to safely removing a coin from from the bottom of a stack comes from friction and inertia. Inertia comes from Newton's first law of motion, stating that an object in motion (or at rest) tends to stay in motion (or at rest). This means that the balanced coins wants to stay in their stacked position, in the spot they are stacked. However, when you attempt to remove the bottom coin, you apply an outside force that causes the stack of coins to topple over.
This is where friction becomes a factor. There is friction between the bottom coin and stack above it. There is so much friction that the bottom coin brings the next coin with it, that coin drags the next coin, and so on. To overcome the amount of friction, you swing the knife at the bottom of the stack. This process is fast-moving, but there is plenty of force to remove the bottom coin. The amount of force applied to the coin is enough that the friction isn’t allowed to tip the tower over. Instead, the tower drops, almost perfectly, into the spot that it was before.
Put cooking oil into a thin container...a 16 ounce soda bottle could work for this. Fill it about 3/4 full of oil. Add water to the container, filling until you are about an inch from the top. (if you fill it to the top, you will have a giant oily mess.
We can see the water is more dense than the oil. The water fall to the bottom of the test tube.
You don't need these. You can just add about ten drops of food coloring to the mixture. (You will need Alka-selter to make the reaction if you use this option.)
Carbon dioxide is released from the fizzing color tablet or the Alka Seltzer. The carbon dioxide caused the colored water to rise to the top of the test tube. When the carbon dioxide reaches the surface, the bubbles pop, causing the colored water to return to the bottom of the test tube.
A beautiful display of science fun.
I got a kick out of this. Kim discovered that she could hear the popping of the carbon dioxide. She shared this discovery with Luke.
Placing the lids on the test tubes the reactions stopped. (The gas could no longer escape the tube)
We now waiting for a bunch of kids to get home from soccer so we can show them our science lesson.
We have been learning about Native Americans this year and these past two weeks we have been learning about our local Native American Nation...the Iroquois Nation.
I wanted to add some artwork into our studies so I decided to have the kids make wampum "belts".
Wampum were made from seashells. They were typically made from the quahog
(purple beads) and the whelk (cream/white beads) shells. Wampum were used
between tribes to send messages or to tell stories. (We mistakenly thought it was used for money...it was not)
First I printed out graph paper for the kids to make some practice designs.