Answer:
mass of each sample.
Explanation:
The quantities that are able to change in an experiment or a research are called as the variables. It is a trait or any factor that exits in different types or amounts. An independent variable is changed by the scientist or the experimenter in the experiment. Its value does not depends on the experiment.
In the context, there are boxes of two dry samples of sand and they are examined by changing one of the parameter. It is the independent variable that is manipulated in the two samples is the mass of each of the sample.
Answer: what type of performance
Which book or movie are you talking about
Explanation: I think his evidence is that he knows a lot of kids who matured more at 18 rather than 16 or 17 because at 18 your basically grown and during your growth you learned different things that helped you mature and understand stuff that you probably didn't know when you were younger. And you most likely take responsibility of the things you know you have too do than a 16 or 17 year old cause when your young you depend on your parents and grandparents to worry and do stuff for you now that your 18 that's your job to worry and do what you need to do so that's why i think the author is trying to explain to the reader. :) hope this makes sense lol
Answer:
The phases occur because the Sun lights different parts of the Moon as the Moon revolves around the Earth. That means the reason we see different phases of the Moon here on Earth is that we only see the parts of the Moon that are being lit up by the Sun.
Explanation: