Hey Robin! I can't believe you failed the density test today in Science. It was super easy.
I didn't understand the lesson properly. Can you help me? I will give you some of my Halloween candy.
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Okay fine, I will help you find the density of a rectangular solid to help you understand the topic more.
Thank you so much for your help.
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If we want to find the density, we need to find the mass and volume of the object first.
I think we use a triple beam balance to find mass and a ruler to find volume?
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That is right! I am surprised you got it right. We use a triple beam balance or a weighing scale to find the mass. So now lets find the mass of the object.
It is 50.7 g because I just went to the other room and checked it since its to heavy to carry.
How did he got that right
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Yes it is. I just made sure. But we are not done yet, we need to find the volume using a ruler to find the length, width and height of the object.
It shows that the length is 7 cm, width is 4 cm and height is 10 cm.
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Now do we do D=M/V?
Now we should multiply all of the dimensions which equals to 280 cm 3.
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Lets go! Now I understand this even more.
Yeah! you are right. So now we do 50.7/280 g/ cm3. The density is 0.18 g/ cm3
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Oh, I already know all the density stuff. I just wanted to improve my knowledge even more since you are smarter than me
What do you mean by I understand this even more ?
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I told my friends to tell you that I failed because remember the embarrassing prank you did on April fools to me. So yeah, that's why.