Posts Tagged ‘science’

#1 Chemistry Tools

Monday, August 4th, 2014

chemistry-toolsThis post contains affiliate links. I was compensated for my work in writing this post.

Today we are starting a new series of blog posts about Elementary Chemistry using Christian Kids Explore Chemistry by Bright Ideas Press. Each of the chapters has a fun hands-on activity as well as a simple explanation of chemistry concepts. Don’t panic if you flunked out of chemistry in high school. This book will help you to understand chemistry concepts if you’ve never understood them before.

In the first chapter we examined the ingredients of common household items to see that chemicals are everywhere! We eat chemicals all the time. Sucrose, for example, is sugar. You will find sucrose in many cereals and desserts.

We were astonished to discover that my hair spray listed alcohol before water in its ingredients list! This means that the hair spray contains more alcohol than water, since the ingredients are listed in order, with the first ingredient being the most abundant.

introduction-to-chemistry-toolsBecause I am teaching high school chemistry to my older two sons, I ordered all this cool chemistry equipment. I describe each of the chemistry tools in the video at the bottom of this blog post, explaining what each tool is used for. You do not need any of these tools for the elementary chemistry, as long as you have a glass measuring cup with measurements on the side. Most people already have this in their kitchens.

Let’s use a couple of these chemistry tools to learn how to measure liquids. We are using a graduated cylinder and a beaker for this simple activity from the book. All you do is pour the liquid back and forth three times.

chemistry-tools-elementaryLook at the markings on the side of the beaker to measure how much liquid is in the beaker. Now look at the markings on the side of the graduated cylinder. If you are doing this experiment at home, use smaller amounts of liquid so your kids don’t have to interpolate (or make an educated guess) about how much liquid is in the graduated cylinder. The orange juice went above the highest measurement, but this might happen in real life as well. My kids guessed that it was the same amount of liquid.

chemistry-tools-2If you pour a liquid back and forth too many times, you might get smaller readings for your liquid. Why? Because some of the liquid has stayed in the container, along the sides and bottom of the container. We noticed a slight change, but it wasn’t a big enough change to matter much.

Take a look at our chemistry tools and our simple measuring experiment:

Solar System Cake

Monday, May 5th, 2014

solar-system-cake

We finished our study of outer space by making this cool Solar System cake! One night at dinner I was brainstorming with the kids how to make a cake look like the sun and the planets. I was thinking I would do a rectangular cake with dark blue icing and draw the sun and planets with icing gel.

But dark blue frosting is very hard to make because icing starts white. And it seems like a lot of work to draw the sun and planets with frosting, especially if your hands start trembling because you want to make it perfect.

I could use candies for the different planets instead of drawing them, choosing the correct colors and sizes for the candy for each planet.

Suddenly a different idea it hit me: Bake one cake in a circle pan, and frost it yellow. Then make the planets cupcakes! “Brilliant!” I shouted at the dinner table, beginning to sing the Halleluyah chorus. The kids cheered, laughing hysterically at my singing. Of course the kids approved, since making cake means eating cake.

solar-system-cake-2

I cut a piece of cardboard slightly larger than the circle cake, taping foil on it, before plopping the cake down on it. After the cake cooled, we frosted it yellow. I placed gold-wrapped Rolo candies around the edge to make the sun fancy, but you could use any yellow candy.

I mixed different colors of icing, and I frosted the cupcakes according to the color of the planets. I frosted Mercury with chocolate frosting instead of trying to make gray frosting. (Yuck! Who would want to eat that?) The Earth cupcake was first frosted with blue, then green blobs for the continents. Jupiter was yellow with swirls of red. Saturn was yellow, and I stabbed a pink pipe cleaner as a ring around it. You could also use licorice.

I placed the Solar System cake on a dark blue sheet that I threw on the table, and I used white candy sprinkles for space dust. Don’t you just love it?

Earth and Space Series

Monday, April 28th, 2014

Earth-And-SpaceThis post contains affiliate links. I was compensated for my work in writing this post.

We’ve had such a great time this year, doing all the hands-on activities in the book Earth and Space by Bright Ideas Press. We’ve formed Earth layers out of clay, dramatized the moon revolving and rotating around the sun, shook sandy earthquakes, dyed plate tectonic eggs, erupted a volcano, grown stalactites, cooked layered sedimentary rocks, performed skits of the water cycle and ocean currents, raced slow glaciers down a ramp, watched how groundwater sinks through layers of sand and pebbles, painted an atmosphere mural, made homemade weather instruments, created a tornado in a bottle, performed a ridiculous weather report, colored the phases of the moon on paper plates and Oreos, made sun prints, and created fun planet cards for the solar system. We did lots of other activities, too, which I mention in the videos contained in each blog post.

Besides all the wonderful hands-on activities in the Earth and Space book, the text was fun and conversational and included plenty of rich vocabulary for each topic. The printable diagrams were great, and all the printables were on a computer disc that came with the book. (The disc is attached to the back inside cover and can be removed after purchasing the book.) This makes the pages easy to copy, since you don’t have to slap a large book on the photocopier. (You are allowed to print copies for your own family.) My kids enjoyed coloring the gorgeous coloring pages, too, so make sure to have some quality colored pencils on hand before beginning the book. We placed all the pages into a notebooking binder, and we decorated the outside of the binder. (I show you how we did this in the first video tutorial below.)

I thought it would be easier for people to find all the posts if I made an index page, so here it is. When you use the book Earth and Space by Bright Ideas Press, be sure to come back and watch the experiments to help you see how they can be done.

Earth and Space Series:

  1. The Earth: Hands-on Activities
  2. Plate Tectonics and Earthquakes
  3. Make Your Own Volcano
  4. Caves Unit Study
  5. Edible Sedimentary Rocks
  6. Water Unit Study
  7. Groundwater Experiment
  8. Atmosphere Unit Study
  9. Hands-on Activities for Weather
  10. Ridiculous Weather Report
  11. Moon Unit Study
  12. Solar System Unit Study

Nature Study

Wednesday, April 16th, 2014

 nature-study

Have you wondered how to incorporate nature study into your homeschool? A couple of weeks ago I was asked to be a panelist on this very topic, where several homeschool moms shared ideas for how to do nature study with children.

Why is nature study important for homeschooling?

Nature is science–plants, animals, rocks, weather phenomena, etc.–all of this is science. To be educated, you need to understand science. And to know it well, you need to see it and experience it first-hand in the great outdoors.

When can you start nature study?

Babies, toddlers, and preschoolers can enjoy nature. Here are some nature activities that small children can enjoy:

High school students and adults can also enjoy nature through nature journals, drawing and labeling intricate details of God’s creation. So all ages can enjoy nature study, especially because you can get fresh air and sunshine on your face while you relax and take it all in. You don’t have to rush when you are doing nature study.

What do you do back inside to follow up on nature studies?

Look inside an insect identification book for the insect you just sketched. Try to identify a tree by its leaves, or look up what kind of rock your son found.

I also like to take out drawing books, especially for younger children who might have trouble drawing straight from nature without seeing a pencil sketch. I describe more about how to do this in my workshop Using Journals to Teach Writing.

How directed should a nature study be? Is mom in charge or do you just let your kids cavort outside?

Most of our nature studies are open-ended, where the kids can decide what they want to write or draw. But if we are studying a specific topic in science, we might look for that topic. For example, if we are studying spiders, we would try to find spiders and spider webs to draw.

Tell us about nature study during the winter months when it’s too cold outside.

You can easily do a winter scavenger hunt, where you find different objects in nature, and snap pictures of them. You can also pay attention to what animals are doing this time of year, and you can study snow and weather. Here are some fun winter nature activities for you to enjoy:

Also, if you want to set up nature collections during the other seasons, you can continue to study nature from your home. Here is a fabulous workshop that shows you how to bring the outdoors into your home:

Here is the panel of homeschool moms who share what they do for nature studies: