Chapter 1 Test Study Guide
Key Terms! – observation, data, inference, hypothesis, theory, science, biology, qualitative vs.
quantitative, controlled experiment, control variable, control group, independent variable, dependent
variable, spontaneous generation, metric system, compound light microscope, electron microscope,
cells, homeostasis, stimulus
1. What are the units of the metric system?
meter-length
gram - mass
liter - volume
2. Why is science always changing? Be specific.
new discoveries, new technology, new inventions, new ideas...
3. You are a scientist in Bikini Bottom and you want to become friends with SpongeBob and
Patrick. They love to blow bubbles and you are eager to join. To impress them, you suggest
that Super Bubble Soap will make their bubbles bigger. To show SpongeBob and Patrick the
results, you set up an experiment; SpongeBob gets a solution of 5mL water and 5mL Super
Bubble Soap and Patrick gets a solution of 5mL water and 5 mL normal bubble soap. Each day,
you measure the diameter of the bubbles. What type of observation is this (quantitative or
qualitative)?
quantitative (measuring the diameter is a number)
4. What’s the difference between a community and a population?
population - all the members of one species in a given area
5. Why is it necessary for scientists to record and publish their experiments and results?
Have work checked
6. List the levels of organization from smallest to largest. DONT NEED THIS ONE
molecule-organelle-cell-tissues/organs/organ systems - organism-population-communityecosystem-biome-biosphere
7. Metric conversions:
Start at……
……Convert To
18.9 mg
.000189 hg
.352 DL
35.2
dL
Start at……
56 kL
92 mm
127 km
127000 m
3L
.024 hg
240
24 dg
cg
…….Convert To
5600000 cL
.03
2.4
8. Why would you ever reject your hypothesis? Are you allowed to reject it?
Yes, if your data does not support or agree with what you hypothesiszed
hL
g
If given a scenario, be able to identify the hypothesis, variables, conclusion. Also be able to go in
reverse…if given a question, be able to come up with own hypothesis, experiment.
9. Ten seeds were planted each in 5 pots found around the house that contained 500 g of “Peter’s
Potting Soil.” The pots were given the following amounts of distilled water each day for 40
days. Pot 1, 50 mL; Pot 2, 100 mL; Pot 3, 150 mL; Pot 4, 200 mL; Pot 5, 250 mL. Pot 3
received the recommended amount of water. The height of each plant was measured at the end
of the experiment.
Hypothesis: If i add more water, the plants will grow more.
Independent: amount of water
Dependent: plant height
Controlled variables: pot, seed type, seed amount, light, soil
Which was used as control group? Pot 3 - received the recommended amount of water
10. How does fertilizer affect plant growth? Design an experiment to test this question. Come up
with a hypothesis based on the question, a controlled experiment, and identify variables. Be
sure you include how you will collect your data, and then how you will analyze your data.
Hypothesis - answers will vary
IV - fertilizer
DV - plant growth
CG - plant with no fertilizer
EG - plants with varying amounts of fertilizer
CV - plant type, number, water, light, soil type, soil amount
Experiment - answer will vary, must be descriptive and in numbered steps