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    NaiveAbafar3712avatar
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    Secondary I • 2yr.

    What is the difference between the biosphere, the hydrosphere, the lithosphere, and the atmosphere?

    Science
    1 answer
  • Verified by Alloprof
    NaiveAbafar3712avatar
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    Secondary I • 2yr.

    What are the visible structures in animal cells and plant cells under a microscope?

    Science
    1 answer
  • Verified by Alloprof
    NaiveAbafar3712avatar
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    Secondary I • 2yr.

    Hey Alloprof,

    What is the difference between Linkage and guidance?

    Science
    1 answer
  • Verified by Alloprof
    NaiveAbafar3712avatar
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    Secondary I • 2yr.

    Can you help me in the following exercise:

    "Name the different effects of forces:

    1. We push on a concrete block
    2. We pull on a rope
    3. We twist a rag
    4. We press on a plank of wood held by two blocks
    5. We tear a piece of fabric ”
    Science
    1 answer
  • Verified by Alloprof
    NaiveAbafar3712avatar
    Verified by Alloprof
    Secondary I • 2yr.

    What is the difference between a helical motion and a rotational motion?

    Science
    1 answer
  • Verified by Alloprof
    NaiveAbafar3712avatar
    Verified by Alloprof
    Secondary I • 2yr.

    How do you choose the correct mixture separation technique?

    Science
    1 answer
  • Verified by Alloprof
    QuietDragon2728avatar
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    Secondary II • 2yr.

    Hello,

    I don't understand the difference between each of these terms: atom, molecule, element and compound.

    Can you help me ?

    Thanks

    Science
    1 answer
  • Verified by Alloprof
    QuietDragon2728avatar
    Verified by Alloprof
    Secondary II • 2yr.

    Why do chemical changes in chemistry respect Lavoisier's law (nothing is lost, nothing is created, everything is transformed)? It seems to me that we destroy something in order to create when there is a chemical change...

    Science
    1 answer
  • Verified by Alloprof
    QuietDragon2728avatar
    Verified by Alloprof
    Secondary II • 2yr.

    What does the phrase "nothing is created, nothing is lost, everything is transformed" mean ?

    thank you!

    Science
    1 answer
  • Verified by Alloprof
    PeacefulEarth1054avatar
    Verified by Alloprof
    Secondary I • 2yr.

    What is the hydrosphere and what is it useful for? Thank you!

    Science
    1 answer
  • Verified by Alloprof
    CannebergeRouge936avatar
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    Secondary III • 2yr.

    Hi,

    I'd also like to know what is a constraint?

    Science
    1 answer
  • Verified by Alloprof
    CannebergeRouge936avatar
    Verified by Alloprof
    Secondary III • 2yr.

    What are the 4 characteristics of links?

    Thanks for your help :)

    Science
    1 answer
  • Verified by Alloprof
    DeltaPotassium727avatar
    Verified by Alloprof
    Secondary I • 2yr.

    Hello! I was wondering if all gases were invisible? Thanks!

    Science
    1 answer
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    AdorableMoose4991avatar
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    Secondary I • 2yr.

    Hi! How do we do the litmus paper test? Thanks a lot!

    Science
    1 answer
  • Verified by Alloprof
    AdorableMoose4991avatar
    Verified by Alloprof
    Secondary I • 2yr.

    Hi,

    My teacher is asking me to measure the volume of a rock. How do I do that? The sides are not straight ... I cannot measure them!

    Science
    1 answer
  • Verified by Alloprof
    KindTyrannosaurus332avatar
    Verified by Alloprof
    Secondary II • 2yr.

    Hello again! :)

    Why is water not an element but a compound? In fact, I don't quite understand the difference. Do you have a tip?

    Science
    1 answer
  • Verified by Alloprof
    AdorableMoose4991avatar
    Verified by Alloprof
    Secondary I • 2yr.

    How do you calibrate a flail scale? Anyway, I don't understand why this is important.

    Science
    1 answer
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