Krebs' Class Blogs

Constructing, creating, communicating, collaborating, and thinking critically in grade 5.

February 27, 2017
by Ayman10+
1 Comment

Moh’s Scale of Hardness

Rocks and minerals are almost everywhere. Even when you are in class you find minerals. The tip of your pencil is a mineral. Sometimes your toothpaste has a mineral called fluorite. Not all the minerals have the same hardness. So biologists, and us, use a table called Moh’s scale of hardness. You can see it below. For example, the diamond is the hardest.  Talc is the softest. The scale use numbers to show how hard it is. It uses from 1-10. 1 is the softest. 10 is the hardest. All minerals are used in different things. Talc is used in talcum powder. Fluorite is used in toothpaste we use. The diagram also shows what scratches it or what it scratches.

Image result for Moh's scale of hardness

February 27, 2017
by Ayman10+

Being the Best doesn’t Mean everyone knows

You always think to make yourself the best. If you’re the best, you feel proud. If you’re not the best, you imagine yourself the best AND try to be the best.

Well, a lot of kids do good work and get good marks, but nobody knows it. Then that kid feels like he’s not good, just because his friends believe it. After this moment, he looks for some things to help people believe him. Then he just says, “Well, looks like I’m not the best”. No! Don’t do this! If you believe it, you are the best, or at least good.

I hope you learned something about this!


February 8, 2017
by Hamoodi4Muhammad

Climate Change

Hi World,

I have something to share. I am worried about the climate change.

So can you stop using cars so much & use bicycles or walk?

To reuse, you can make a hole in an old tennis ball to make a home for a rat.

Recycling is quite fun, making crafts and toys from trash and in fact, recycling a soft drink can can save electricity for a TV to run 3 hours.

I hope you have a solution for this problem before the atmosphere becomes like Venus.


Muhammad S.

February 7, 2017
by fatoom



Friends: what’s the use of friends? Friends are something important in people’s lives because they help you and stand with you whenever you need help. Friends are like stars. You may not see them at times, but you know that they are always there.

February 7, 2017
by fatoom


Imagination is something that everybody has, even though some people just didn’t show it yet. Imagination also helps your English skills. Some people must discover their imagination. You always use your imagination, for example, for art projects and writing.

Imagination is something you also must control because maybe somebody will say that I will push a ball and hit a bottle under somebody and he calls it imagination. This is not imagination; this is called revenge plans. Remember to use your imagination on something good. Imagination!

Image result for imagination sqaishey

Sqaishey “Imagination” Song

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