Which macromolecule is the primary source of energy for cells (quick energy)?
Carbohydrates
100
Define a question
What is - the first step of the scientific method of inquiry?
100
Beryllium has an atomic number of 4 and an atomic mass of 9. How many protons does Beryllium have?
BONUS: How many neutrons?
4
BONUS: 5
100
What is kinetic energy?
BONUS: What is potential energy?
Kinetic - energy of motion
BONUS: Potential - stored energy
200
How does biotic and abiotic factors differ?
BONUS: Name an example of each
Biotic - living
Abiotic - nonliving
Examples:
Biotic - plants, animals, bacteria, fungi
Abiotic - sunlight, water, wind, temperature
200
Name one difference between DNA and RNA
BONUS: Name two more
DNA - deoxyribose sugar, double stranded, contains thymine
RNA - ribose sugar, single strand, contains uracil
200
stop, drop and roll
What is- things you do when your clothing catches fire
200
Which type of radiation will penetrate deepest into the human body?
(HINT: alpha, beta or gamma)
gamma
200
What is refraction?
The bending of a wave as it enters a new material.
300
What is the purpose of an enzymes?
To speed up chemical reactions by lowering the activation energy
300
Place the following in the correct ecological order
community, biome, ecosystem, population, organism
organism, population, community, ecosystem, biome
300
googles, safety glasses, and sheilds
What are - protective devices for eyes
300
A sample of copper has a mass of 80 g. The sample was added to a graduated cylinder. The volume of water before the sample was added was 10 mL, the volume of water after the sample was added was 20 mL. What is the density of the copper sample?
8 g/mL
300
What medium does sound travel the fastest through?
BONUS: Can you hear sound in space? Why or why not?
Solid
BONUS: No, because it needs a medium to travel through and space is a vacuum.
400
What is homeostasis?
BONUS: Name one way in which cells maintain homeostasis.
The process of maintaining a relatively stable internal environment.
BONUS: diffusion, facilitated diffusion, osmosis, active transport
400
Fill in the blanks :
Photosynthesis:
Carbon dioxide + water + sunlight ---> _______ + glucose
Cellular Respiration:
Oxygen + glucose ---> Carbon dioxide + water + _________
Oxygen
ATP (energy)
400
analyze the data
What is the next step after "test the hypothesis"
400
What is an isotope?
Atoms of the same element that have a different number of neutrons
400
What is the name for NaBr
BONUS: Is NaBr and ionic or covalent compound - how do you know?
sodium bromide
ion - bond between a metal and a nonmetal
500
Name one advantage of sexual reproduction.
Genetic diversity, it can remove harmful traits from a population.
500
How do bacteria become resistant to antibiotics?
The bacteria that are naturally resistant (because of some mutation) will survive and reproduce passing on the resistant gene. NATURAL SELECTION
500
Who are the best tutors in the whole wide world?
Who are Mr. Boeck and Ms. Miller
500
If 400 g of a radioactive material has a half-life of 10 years, how much will be left after 30 years?
50 g
500
Classify the following as: synthesis, decomposition, single replacement, double replacement
1) AC + BD ---> AD + CB
2) A + B ---> AB
3) AB + C ---> AC + B
4) AB ---> A + B
1) Double replacement
2) Synthesis
3) Single replacement
4) Decomposition