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  QuietDragon2728

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  Secondary II • 4yr.

  How do you know if a particle is an atom or a molecule?I'm not sure I understand...

  Science

  0

  1 answer
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  QuietDragon2728

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  Secondary II • 4yr.

  Hello,

  In my assignment I have to differentiate the atoms from molecules and the elements from compounds, but I can't do it. Can you explain to me how I can tell them apart?

  Thank you so much!

  Science

  0

  1 answer
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  ZenZombie9054

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  Secondary III • 4yr.

  What is the difference between a force, a constraint, and the consequences of the effects of a force?

  Science

  0

  1 answer
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  ZenZombie9054

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  Secondary III • 4yr.

  Hey,

  
  

  What's the difference between linkage and guiding?

  Science

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  1 answer
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  QuietDragon2728

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  Secondary II • 4yr.

  What constitutes and doesn’t constitute a color change in a chemical reaction?

  Science

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  1 answer
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  AdorableMoose4991

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  Secondary I • 4yr.

  Good morning! I have a hard time distinguishing the lithosphere, the continental lithosphere, the oceanic lithosphere, landforms and the natural resources of the lithosphere. Can you help me?

  Science

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  1 answer
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  AdorableMoose4991

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  Secondary I • 4yr.

  hi! What distinguishes the biosphere, hydrosphere, lithosphere, and atmosphere?

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  1 answer
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  AdorableMoose4991

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  Secondary I • 4yr.

  Good morning!

  How do you tell plant and animal cells apart with a microscope? Thank you!

  Science

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  1 answer
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  AdorableMoose4991

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  Secondary I • 4yr.

  Hello! I have a hard time using the microscope. Can you explain how to use it and give me some advice?

  Science

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  1 answer
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  AdorableMoose4991

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  Secondary I • 4yr.

  Hello, 

  
  

  I know that a doorknob has a bi-directional rotational motion, but I don't know how to draw this type of movement. Can you help me please ?

  Science

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  1 answer
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  GrenatResponsable523

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  Secondary II • 4yr.

  Hello,

  I am having a hard time with the motion transformation mechanisms. Could you explain them to me please?

  Thanks a lot!

  Science

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  1 answer
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  GrenatResponsable523

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  Secondary II • 4yr.

  Hello,

  I had a genetics class today, but I didn't really get it. Can you explain it to me again?

  Thanks a lot!

  Science

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  1 answer
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  GrenatResponsable523

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  Secondary II • 4yr.

  Hello,

  What's the difference between prokaryotic and eukaryotic cells? 

  Thank you

  Science

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  1 answer
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  GrenatResponsable523

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  Secondary II • 4yr.

  Hi,

  
  

  Why do the leaves change color in the fall? Why does the green disappear?

  Good evening

  Science

  0

  1 answer
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  GrenatResponsable523

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  Secondary II • 4yr.

  Hello! Can humans and plants do both photosynthesis and cellular respiration?

  Thank you :)

  Science

  0

  1 answer
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  GrenatResponsable523

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  Secondary II • 4yr.

  Hello,

  I can't seem to understand how energy can manifest naturally. Can you explain to me how it manifests please?

  Thanks a lot!

  Science

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  1 answer
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  GrenatResponsable523

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  Secondary II • 4yr.

  Hello,

  I can't understand the difference between renewable and non-renewable natural resources. Can you explain it to me please?

  Thanks a lot!

  Science

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  1 answer
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  NaiveAbafar3712

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  Secondary I • 4yr.

  How does temperature vary with the atmosphere’s altitude? Thank you

  Science

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  2 answers
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  NaiveAbafar3712

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  Secondary I • 4yr.

  Can an object guide and link at the same time?

  Science

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  1 answer
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  NaiveAbafar3712

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  Secondary I • 4yr.

  What is the difference between rotational guiding, translational guiding, and helical guiding?

  Science

  0

  1 answer
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  NaiveAbafar3712

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  Secondary I • 4yr.

  Hello, what is the difference between a direct and indirect link and a rigid and elastic link?

  Science

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  1 answer
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  NaiveAbafar3712

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  Secondary I • 4yr.

  What is the difference between twist and tension? Thank you :)

  Science

  0

  1 answer
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  NaiveAbafar3712

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  Secondary I • 4yr.

  Hi! 

  Can you explain to me what the deformation is, please? 

  Thank you

  Science

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  1 answer
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  NaiveAbafar3712

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  Secondary I • 4yr.

  Hi! I don't fully understand the difference between movement, force, effects, and consequences ... Can you enlighten me, please?

  
  

  Thank you 🙂

  Science

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  1 answer
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  NaiveAbafar3712

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  Secondary I • 4yr.

  Hello, 

  Can you tell me what are the phases of matter present during laboratory distillation?

  Science

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  1 answer
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  NaiveAbafar3712

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  Secondary I • 4yr.

  Hello,

  Can we do a filtration to separate all the heterogeneous mixtures?

  Science

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  1 answer
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  NaiveAbafar3712

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  Secondary I • 4yr.

  Hello, 

  Soon, I'll have an exam on all the labs that we did this year, but I was absent during the lab in which we did decantation. Could you tell me how to proceed?

  Science

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  1 answer
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  NaiveAbafar3712

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  Secondary I • 4yr.

  Hello,

  I have to separate mixtures in my laboratory, but I no longer recall techniques. Could you please remind me?

  Thanks a lot!

  Science

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  1 answer
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  NaiveAbafar3712

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  Secondary I • 4yr.

  Hello.

  I learned about separating mixtures methods in class (evaporation, decantation, filtration, distillation, sieving, centrifugation, paper chromatography, and chemical techniques), but I'm not sure that I use the right technique in the right situation. 

  Can you explain to me, please?

  Science

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  1 answer
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  NaiveAbafar3712

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  Secondary I • 4yr.

  How do I find the state of the matter if I have pictures like this without description:

  

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  Ce contenu est protégé par le droit d'auteur. Toute reproduction à l'extérieur des forums Alloprof est interdite et pourra être considérée comme une violation du droit d'auteur.

  

  

  Ce contenu est protégé par le droit d'auteur. Toute reproduction à l'extérieur des forums Alloprof est interdite et pourra être considérée comme une violation du droit d'auteur.

  

  Science

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  1 answer