workfile chp. 1 2 Essay

Submitted By simmons1503
Words: 497
Pages: 2

Chapters 1 and 2
Workfile Study Sheet

1. If carbon has an atomic mass of 12 and an atomic number of 6, how many electrons does it have?
2. What is “discovery-based science?”
A collection of analysis of data without the need for a preconceived hypothesis.
3. What is a “theory?”
Broad explanation of some aspects of the natural world that is substantiated by a large body of evidence.
4. Describe the two words that makeup the scientific name.
Genus and species
5. What is an isotope?
Multiple form of an element that differ in number of neutrons
6. What is the atomic number?
The number of protons in the nucleus of an atom
7. Which domain typically consists of organisms that are more complex than the others?
8. What type of bond usually occurs between two water molecules (or for that matter between strands of DNA)?
Hydrogen bond
9. In the system of organization, what do cells make up? tissues 10. Which categories of classification is the most general? kingdom 11. What is a molecule?
Atoms bonded together
12. What type of bonds form from the unequal sharing of electrons?
Polar covalent bond
13. What subatomic particles are found in the nucleus?
Neutrons and protons
14. How many bonds can carbon form?
15. If oxygen has an atomic mass of 16 and an atomic number of 8, how many electrons does it have?
16. What is the smallest unit of matter? atom 17. A group of people at a picnic represent what level of organization? community 18. Describe ionic bonds.
It occurs when a cation binds to an anion by electrostatic attraction
19. What is the most specific category of classification? kingdom 20. A group of species make up what? population 21. What does it mean to say water is “polar?”
It has a charge. It can be negative or positive
22. Define biological evolution.
A genetic change
23. What would happen if someone were to add HCl to an aqueous solution? (HINT: Think about the definition of pH.)
H+ would be released into the solution and the ph would…