What Scientific Activities have I did this Summer

During this Summer I was the whole time in Monte Negro. Up in the mountains where there is a lot of rocks i got an idea to start making a little wall of stone. However, to support that big stone wall or just a stone on top of a stone, there has to be either cement or concrete. This was a lot of fun for me, mixing water sand and cement which is almost as like cemestry. to get this hard and supporting substance you have to mix thse 3 substances which are water and cement  and sand. This typeof a substance is a conpund substance which mean that 2 or more elements give one more element which is the third one. How does this form? Easily, the molecules in the whole 3 substances integrate and form the thirs compound substance this is how it works. But if there is any element from these 3 missing then it wont make the concrete nor it will be supportful nor it wont be a conpund substance but it will be just a mixed substance. After wards I used the cement to stick the stones on top of each other, and it will last who knows up to when.

Goals For this Year in Science

I am back from my holydays and now I am 7th  grade. Now I have to make new goals for this year. My goals in science class this year are:

1. To be better in physics this year.
2. To be even more better in tests and earn even better grades.
3. And to study more and better for tests and to be more efficient more while doing tthis year.