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  AdorableMoose4991

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  Secondary I • 3yr.

  Good morning!

  ...

  Science

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  1 answer
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  AdorableMoose4991

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  Secondary I • 3yr.

  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 • 3yr.

  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 • 3yr.

  Hello,

  ...

  Thanks a lot!

  Science

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  1 answer
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  GrenatResponsable523

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  Secondary II • 3yr.

  Hello,

  ...

  Thanks a lot!

  Science

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  1 answer
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  GrenatResponsable523

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  Secondary II • 3yr.

  Hello,

  ...

  Thank you

  Science

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  1 answer
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  GrenatResponsable523

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  Secondary II • 3yr.

  Hi,

  ...

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

  Good evening

  Science

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  1 answer
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  GrenatResponsable523

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  Secondary II • 3yr.

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

  ...

  Science

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  1 answer
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  GrenatResponsable523

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  Secondary II • 3yr.

  Hello,

  ...

  Thanks a lot!

  Science

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  1 answer
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  GrenatResponsable523

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  Secondary II • 3yr.

  Hello,

  ...

  Thanks a lot!

  Science

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  1 answer
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  NaiveAbafar3712

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  Secondary I • 3yr.

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

  Science

  0

  2 answers
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  NaiveAbafar3712

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  Secondary I • 3yr.

  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 • 3yr.

  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 • 3yr.

  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 • 3yr.

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

  Science

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  1 answer
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  NaiveAbafar3712

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  Secondary I • 3yr.

  Hi! 

  ...

  Thank you

  Science

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  1 answer
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  NaiveAbafar3712

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  Secondary I • 3yr.

  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 • 3yr.

  Hello, 

  ...

  Science

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  1 answer
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  NaiveAbafar3712

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  Secondary I • 3yr.

  Hello,

  ...

  Science

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  1 answer
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  NaiveAbafar3712

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  Secondary I • 3yr.

  Hello, 

  ...

  Science

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  1 answer
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  NaiveAbafar3712

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  Secondary I • 3yr.

  Hello,

  ...

  Thanks a lot!

  Science

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  1 answer
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  NaiveAbafar3712

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  Secondary I • 3yr.

  Hello.

  ...

  Can you explain to me, please?

  Science

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  1 answer
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  NaiveAbafar3712

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  Secondary I • 3yr.

  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.

  

  Science

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  1 answer
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  FastFox1311

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  Secondary III • 3yr.

  Hello! In my homework I need to find the molar concentration of 0.874 kg of H3PO4 in 3L of water, how do I find it?

  Science

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  1 answer
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  FastFox1311

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  Secondary III • 3yr.

  Hello! I do not understand the link between solvent, solute and solution.

  ...

  Science

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  1 answer
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  FastFox1311

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  Secondary III • 3yr.

  How can we tell the order in which substances float on top of each other (in what order they overlap)?

  ...

  Science

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  1 answer
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  ZenZombie9054

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  Secondary II • 3yr.

  Hello,

  ...

  Thanks a lot!

  Science

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  1 answer
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  ZenZombie9054

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  Secondary II • 3yr.

  How do you distinguish between physical changes and chemical changes? What is the difference?

  Science

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  1 answer
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  ZenZombie9054

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  Secondary II • 3yr.

  Hello,

  ...

  Thanks a lot!

  Science

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  1 answer
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  ZenZombie9054

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  Secondary II • 3yr.

  Hello alloprof

  ...

  thank you

  Science

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  1 answer