Discussion List
-
Secondary II • 3yr.
Hello,
...
Can you help me ?
Thanks
-
Verified by Alloprof
Secondary II • 3yr.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...
-
Verified by Alloprof
Secondary II • 3yr.What does the phrase "nothing is created, nothing is lost, everything is transformed" mean ?
...
-
Verified by Alloprof
Secondary I • 3yr.What is the hydrosphere and what is it useful for? Thank you!
-
Verified by Alloprof
Secondary III • 3yr.Hi,
...
-
Verified by Alloprof
Secondary III • 3yr.What are the 4 characteristics of links?
...
-
Verified by Alloprof
Secondary I • 3yr.Hello! I was wondering if all gases were invisible? Thanks!
-
Verified by Alloprof
Secondary I • 3yr.Hi! How do we do the litmus paper test? Thanks a lot!
-
Verified by Alloprof
Secondary I • 3yr.Hi,
...
-
Verified by Alloprof
Secondary II • 3yr.Hello again! :)
...
-
Verified by Alloprof
Secondary I • 3yr.How do you calibrate a flail scale? Anyway, I don't understand why this is important.