Archive for the ‘Homeschooling’ Category

Bowling with Momentum

Monday, September 12th, 2016

bowling-with-momentum

Today we are going on a field trip to a bowling alley: we will be bowling with momentum! Momentum is defined as the tendency of an object that is moving to continue moving.

How do you find momentum?

You find momentum by multiplying mass times speed:

momentum = mass x speed

In the case of my bowling ball, I saw on the TV screen above my head that my bowling ball was moving down the lane at 16 miles per hour. My bowling ball was 10 pounds. So the momentum was 160 pounds-miles/hour.

Bowling Experiment (video)

This post contains affiliate links. I was compensated for my work in writing this post.

We have been learning about momentum from Christian Kids Explore Physics by Bright Ideas Press, and this is one of the hands-on activities in the book. As you can see in the video, less speed or a lighter ball will decrease momentum. More speed or a heavier ball will increase momentum and be more likely to knock the pins down.

bowling

When my kids were toddlers, they would roll the bowling ball down the lane, and it sometimes stopped halfway down the lane because it lacked momentum. You need to give a ball enough speed so that the ball has enough momentum to keep going forward.

If the child had used more force (to increase the speed of the ball), it would probably not have come to a complete stop. (A heavier ball would have helped, too, but my toddlers could barely lift the lightest ball!)

bowling-physics

Why not go to a bowling alley this week and see if you can increase the momentum of your bowling ball and improve your score?

Van Gogh Art Projects for Kids

Friday, September 9th, 2016

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This post contains affiliate links. I was given access to the class to blog about it, which I was very glad to do.

This is the fourth week of Mixing with the Masters, and we are creating some fun Van Gogh art projects. One of my favorite paintings of all time is “Starry Night,” so I was overjoyed to have the opportunity to paint this myself! The “Sunflowers” and the “Autumn Reaper” are also famous, and I enjoyed watching my kids create these pieces.

Sunflowers

sunflowers-by-van-gogh

It’s interesting how different artists will paint flowers. Last week we saw Monet’s paintings with waterlilies, and they were created in a completely different way than Van Gogh’s. Monet’s flowers were smaller and painted in a quick way to give a general impression, whereas Van Gogh’s many sunflower paintings contain more detail. He also used thicker paints, which added texture to the painting. Alicia (the art instructor) shows you how to thicken your paint to create the same effect on your canvas.

painting-sunflowers

Once again, she provides a printable to help you get the general shape of the flowers before you begin to paint. I love how each of my kids had a slightly different interpretation of the sunflowers. One of my children saw mostly orange rather than yellow, and one of my sons painted a darker background. Two of my children wanted to change the color of the vase, and the table is vastly different in each of my children’s paintings.

Autumn Reaper Watercolor

autumn-reaper-watercolor

This watercolor piece requires you to learn more advanced techniques of watercolor. You use different shades of yellow, and you learn how to make visible brush strokes. The wheat field looks different in each one of my children’s watercolor paintings, and each has its own personality.

painting-autumn-reaper

It’s helpful to have a paper towel available to each child, in case they have too much water puddle up on the paper, or if they make a mistake. Alisha (the instructor) shows you how to “erase” your watercolor mistakes in her demonstration video. It enables the kids to have a greater confidence in painting: they don’t have to worry about mistakes because those mistakes can be corrected.

Starry Night

starry-night-by-van-gogh

I loved this “Starry Night” painting! This art project is best done over the course of a week. Before the first day, you paint the canvas tan. This is because Alisha is going to show you how to make a grid and transfer the pattern from a printout of a famous painting onto a canvas of any size. Yes, if you wanted to paint this on  the wall of a Sunday School kids’ room, you could make a grid on the wall and follow the instructions that Alisha gives in the video to transfer the pattern onto the wall.

starry-night-sky

The second and third days will be for painting the sky, and the fourth and fifth days can be for the town and tree. You can paint the sky in one day if you have a big block of time available. I have to say that even though this was the most time-consuming art project of this course, it was the most fun, and it was definitely worth the time investment! It was relaxing for me to paint this picture in the evening after the kids went to bed (in short installments), and the kids could see how much they needed to do the next day.

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The dashes over the entire painting made me happy. I can’t explain it, but the process of creating art is open-ended and refreshing–it’s like an expression of who you are.

van-gogh-town

If you want to see my finished painting, I posted it here. (Years ago, I posted a song on my blog about Vincent Van Gogh called “Starry Night” by Don McLean, the same guy who sang “American Pie.” Now I have a picture to introduce the video!)

I love how my kids are able to reproduce so much famous artwork, using the same techniques of the famous artists. In next week’s Mixing with the Masters art class, we will be doing Picasso!

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Flying Projectiles & Plotting Trajectories

Monday, September 5th, 2016

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Today we will be playing with flying projectiles and plotting trajectories. Yes, physics can be super fun when it’s hands-on!

First you will want to grab several objects that you don’t mind tossing into the air. We chose the following objects: a football toy, a small basketball, a frisbee, an over-sized toy clock, and a frozen cheese pizza.

Flying Projectiles Experiment (video)

This post contains affiliate links. I was compensated for my work in writing this post.

We got the idea to toss a pizza in the air as a projectile because of this quiz question from Christian Kids Explore Physics by Bright Ideas Press:

cheese-pizza

One of my sons insisted that a cheese pizza could very well be a projectile. Ha!

So what exactly is a projectile?

A projectile is something that can be sent flying through the air. How far the projectile flies through the air depends on three things:

  1. The speed of the projectile (how hard you throw the ball)
  2. The force of gravity (it pulls down on the object)
  3. The angle of launch (the higher the angle, the farther the object will go)

Then what is a trajectory?

A trajectory is the path of a projectile. If you want to plot the trajectory of a tennis ball rolling off a table, you will need the following items:

  • a tennis ball
  • a table
  • a measuring tape
  • masking tape
  • charts from the book

trajectory-experiment

As you can see in the video, we rolled the ball off the table with with slow, medium, and fast speeds, and we plotted those trajectories. (You mark the floor at the edge of the table with the masking tape to use that as a starting point to measure how far the ball flies through the air.)

We also dropped a ball straight down to see if there was any trajectory at all. You can see the results of our experiment in the video above. It was super fun!

plotting-trajectories-chart

Monet Art Projects for Kids

Thursday, September 1st, 2016

monet-art-projects-for-kids

This post contains affiliate links. I was given access to the class to blog about it, which I was very glad to do.

This is the third week of Mixing with the Masters, and my kids created three beautiful Monet art projects. Many Impressionist works of art focus on light shining on water, and these pieces of art are painted quickly. I love the colors that Monet used in his paintings. The Impressionists loved to paint outdoors.

Impression Sunrise Painting

Impression-Sunrise
This first Impression Sunrise painting was created quickly beginning with a burnt orange paper. Alisha (the art instructor) gives you step by step instructions on how to paint this scene briskly with back and forth strokes of the brush. I like the reflection of the setting sun in the water, and the silhouette of two boats in the foreground.

impressionist-for-kids

Japanese Footbridge Wax Resist

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This project came out beautiful! Alisha shows how to create this crayon resist with oil pastels and watercolors. She uses a secret ingredient to cause the scene to look like it has thousands of tiny leaves. I thought it was incredibly clever!

watercolor-monet

We listened to the song “Like a Bridge Over Troubled Water” by Simon and Garfunkel while painting the bridge.

watercolor

We dumped all the greens, yellows, and blues onto the table, and the kids created the scene with these colors.

I decided to do a watercolor based on a different Monet bridge scene:

monet-extra-project

The colors were fun, and I used a Bob Ross brush that he uses to paint his “happy little clouds.” I painted the bushes, trees, and grasses with that brush. And I did the same crayon resist that Alisha shows you in the Japanese Footbridge piece.

Waterlilies Red Mixed Media

waterlilies-red-project

This was another lovely project. We painted blue water on a canvas, along with the water lilies. We made the red water lilies three-dimensional by gluing them onto the lily pads. Alisha gives great instructions for how to make the water lilies come alive in the water.

glue-monet

We are thoroughly enjoying this Mixing with the Masters art class, and we can’t wait for next week, which is Vincent Van Gogh!

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