*Contributor: Briana Pincherri. Lesson ID: 11261*

How much does the earth weigh? More than you can write down in a few seconds! Using scientific notation makes that easier, so watch this video and get some online practice to make it easy on yourself!

categories

subject

Math

learning style

Visual

personality style

Lion, Otter

Grade Level

Middle School (6-8)

Lesson Type

Skill Sharpener

Feel like you are getting pretty good at changing the largest of large numbers and the smallest of decimals into more manageable scientific notation? Now's your time to shine, using those scientific notation skills to shrink those cumbersome numbers and convert them back to standard form!

You may be excited to begin counting all those spaces and performing all those conversions, but let's take a few minutes to review the process before we get started!

Here's a short video, *Scientific Notation – Conversion* by Math Meeting, to help you review and get ready for all the math fun to come!

- By the way, do you know the weight of the earth?

- Do you know the weight of the earth now?

Why do we need to use scientific notation when we talk about things like the earth's or sun's weight? Take a minute to discuss your answer with your parent or teacher.

Okay, now let's review the process. That video provided an example of each conversion in this order:

- From scientific notation to large number in standard form (just the number itself!)
- From scientific notation to small number in standard form (same!)
- From large number to scientific notation
- From small decimal number to scientific notation

If that made sense, then head to the *Got It?* section to try some problems on your own. If you need to pause and re-watch the examples, please take your time and do so. It never hurts to review problems more than once.

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