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What’s inside Planet Earth?

Posted on 28th Sep 2007 | In Earth Science


Well –that’s what the L’s asked me last weekend so I decided to ask them right back. Loghlen answered ‘gravity’ which I thought was pretty cool. Lukie said it’s very very hot in there and Leah said ‘apple’.  Apple! –what a great idea to help us talk more about our planet. So……..

1. Mommy, Lukie and Leah cut an apple in half.




2. Then Loghlen measured the diameter of the apple. It was 2.5 inches.  This is just like the equator –an imaginary line running through the center of the earth equidistant from the North Pole and the South Pole. It divides the Earth into a top half and a bottom half known as the Northern Hemisphere and Southern Hemisphere.

3. Then we all colored the core of the apple. Just like the apple our earth has a core too. In fact the earth has an outer core and an inner core.
Look at the great coloring job we did.

4. Next we measured the apple’s flesh –the distance from the outer core to the skin of the apple. This is just like the earth’s mantle.

5. Finally we measured the skin of the apple as accurately was we could (it was about one tenth of an inch). This is just like the earth’s crust.
When we finished the 3 L’s all colored the Science With Me! What’s inside the Earth? coloring sheet.
See Loghlen’s!! He did a nice job–especially those lovely blue oceans.

To discuss this topic further with your kids see our article: Learn about Planet Earth or visit our Earth Science section at Educate With Me!

To keep your kids interested in and learning science be sure and sign up for our free activities. Or if you know us already and are familiar with high quality materials we produce go ahead and purchase our Science Activities Bundle.

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Elva O'Sullivan Ph.D is an educator and founder of She has created over 50 educational science products for the marketplace. To learn more about her and ScienceWithMe!® follow her on Facebook, LinkedIn and Twitter.

WOW! Elva O'Sullivan, founder of has one of the top 10% most viewed LinkedIn profiles for 2012. LinkedIn now has 200 million members. View Elva's profile!


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