7th Grade Science
Elements, Compounds, and Formulas
1. Elements are made of ___________.
2. Elements are found on the _____________________.
3. Elements have chemical _____________________.
4. Element symbols are made up of ______________________ letters.
5. The first letter is always __________________.
6. The second letter, if present, is _______________________.
7.
Element
Chemical Symbol
Carbon
Aluminum
Fluorine
Copper
7. Compounds are made up of
_______________________________________________________.
8. This means the elements were combined by a ___________________.
7th Grade Science
Elements, Compounds, and Formulas
9. The atoms of the atoms are held together by chemical ___________-a
___________________ between the atoms that holds them together.
10.The compound is a ____________ substance and has
_________________________________than any of the elements that are in the
compound.
11. Compounds have chemical ________________________.
12. _______________ + _________________ = _______________________________
________________ + ________________ = ________________________________
12. Compound chemical formulas tell us
1.
2.