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4th Day Science

The sun - Lesson 3

1/23/2023

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Manna moment

Genesis 1:16- "Then God made two great lights: the greater light to rule the day..."  Great is God's faithfulness!  Since Creation, the Sun has never ceased to shine upon the Earth with the exception of a few supernatural events in scripture.  Even in the darkest night, the Sun is shining on another part of the world.  This reminds me of how our God never sleeps and is always taking care of us.  Great is His Faithfulness!

sun basics

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  • The Sun is a yellow dwarf star and is in the center of our solar system.
  • It is made up of hydrogen and helium gases
  • The Sun is about 93,000,000 miles away from the Earth.
  • It provides our planet with light, heat and gravity.
  • Energy travels from the Sun in the form of electromagnetic radiation.  

There are many kinds of waves that form the electromagnetic spectrum.  The only part that we can see with our unaided eye is the visible light section of the spectrum.  It is from studying these wavelengths that we are able to figure out the composition of stars, planets, comets, and galaxies.

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How do we know anything about the sun?  Its so bright and Hot!!

There is a Solar and Heliospheric Observatory (SOHO) that orbits the Sun in the same line as the Earth.  It was first launched in 1995 but has been extended several times and will, at this time, remain until 2025.  One of the purposes of this mission was to acquire knowledge of the structure of the interior of the sun.  While no one can observe the interior, the information gathered from SOHO has been incredibly helpful.
For more information about this mission visit here.

Parts of the Sun Model

I gave this to the students to do on their own to review the parts of the sun.  You can check it out here.
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My students are awesome and their parents are amazing!!!  Way to get after this homework on a day when the sun isn't out!

How large is the Diameter of the sun?

Our in class investigation today was to see if we could find the diameter of the sun.
The only materials needed are:
  • 2 index cards
  • push pin
  • pencil
  • How Large is the Sun Investigation Guide
  • ruler

Procedure:
The students were to first draw a 2mm circle on one of their index cards.  Then in the other index card, they were to poke a pin hole into it.
We went outside on a bright, sunny day and used the pin hole to try and match the size of the 2mm circle.  When that happened, a partner was to measure the distance between the two cards in millimeters.
We then divided 186,000,000 by our number in millimeters to get the estimated diameter of the sun.  To see how accurate your number was, you can then divide your number by 864,000 to get a percentage.  The closest to 100% is how well you did your measuring and calculating.

We made an investigation sheet based off the experiment in the 77 Fairly Safe Science Activities for Illustrating Bible Lessons by Donald B DeYoung.  This is one of my favorite books for getting science activities from.  There is a scripture, explanation of the activity, the science behind it and a biblical application.
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A 2mm circle is very hard to draw.  It is soooo small.  They did a great job though.

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They are to match the size of the light going through the pin hole with the 2mm circle.

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Once they matched the light from the pin hole with the 2mm circle, they are to measure the distance between the index cards. 
They will use this number in the division problem mentioned above.


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    Lead Learner

    Welcome! My name is Nicole Fleming and I have been leading science learning in the Bryan/College Station homeschool community for over 10 years. ​​

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  • T-Shirt Fundraiser
  • Homepage
  • Route 104 Science
  • Science Fair
  • About
  • Consulting
  • First Things Science (K-1)
    • Timely Science
    • Going Moving Doing
    • Growing Up Wild
    • Five Gifts Science
    • Creation Science 2023
  • Elementary Science (2-3)
    • Stormchasers
    • Science of the Unseen
    • The World in His Hands Part 1
    • The World in His Hands Part 2
  • Intermediate Science (4-6)
    • Journey to the Center of the Earth Part 2
    • Journey to the Center of the Earth
    • Made in God's Image
    • The Manna of Things
    • Mysteries of Flight
    • 4th Day Science - Astronomy
  • Junior High Science (6-9)
    • Systems in Nature
    • Scaling Up Science
    • Physical Science Online
  • In Press and in the Community
  • Science on Site
  • Classical Conversation Science
  • Teachers Pay Teachers Storefront
  • Extras
    • Math in the Middle