Quiz #1:
1.
Award: 6.25 out of 6.25 points
Which of the following hypotheses can be tested with experiments? (Select all that apply.)
Scientists will find a cure for cancer before the year 2020.
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A diet low in sugar reduces the risk for heart disease.
1
Coffee increases subject performance on intelligence tests.
2
People that brush their teeth live longer than those that don't brush their teeth.
3
For hypotheses to be testable, there must be a way to collect data that can support or reject the hypothesis. One cannot test the
hypothesis that cancer will be cured by 2020.
2.
Drag the word or description on the left to a dock on the right to test your understanding of
-2-2 http://ezto.mhedu
the characteristics of life.
,3.
Complete the sentences below using the words provided. Each word can only be used once, and some may not
-2-2
be used at all.
Water is a compound composed of three atoms.
Hydrogen bonding between water molecules allows water to be cohesive. This property of water allows it to rise
from a plant's roots to its highest branches.
Because water is a polar molecule, it is a good solvent for hydrophilic molecules.
Sweating can have a cooling effect, due to evaporation. This is because energy is needed to break water’s
hydrogen bonds.
Frozen water is less dense than liquid water, causing ice to float.
4.
, Classify the following as domains, kingdoms, or neither.
-2-2 http://ezto.mhedu
5.
Where do lipids, a class of organic compounds, fit on the hierarchy of biological
-2-2 http://ezto.mhedu
organization? Select the correct box.
6. -2-2
Classify each of the following phrases as descriptions for either ionic or covalent bonds.
, 7.
Look at the image below, which shows three identical molecules. Select all of the true statements about these
-2-2
molecules.
1.
Award: 6.25 out of 6.25 points
Which of the following hypotheses can be tested with experiments? (Select all that apply.)
Scientists will find a cure for cancer before the year 2020.
-2-2
A diet low in sugar reduces the risk for heart disease.
1
Coffee increases subject performance on intelligence tests.
2
People that brush their teeth live longer than those that don't brush their teeth.
3
For hypotheses to be testable, there must be a way to collect data that can support or reject the hypothesis. One cannot test the
hypothesis that cancer will be cured by 2020.
2.
Drag the word or description on the left to a dock on the right to test your understanding of
-2-2 http://ezto.mhedu
the characteristics of life.
,3.
Complete the sentences below using the words provided. Each word can only be used once, and some may not
-2-2
be used at all.
Water is a compound composed of three atoms.
Hydrogen bonding between water molecules allows water to be cohesive. This property of water allows it to rise
from a plant's roots to its highest branches.
Because water is a polar molecule, it is a good solvent for hydrophilic molecules.
Sweating can have a cooling effect, due to evaporation. This is because energy is needed to break water’s
hydrogen bonds.
Frozen water is less dense than liquid water, causing ice to float.
4.
, Classify the following as domains, kingdoms, or neither.
-2-2 http://ezto.mhedu
5.
Where do lipids, a class of organic compounds, fit on the hierarchy of biological
-2-2 http://ezto.mhedu
organization? Select the correct box.
6. -2-2
Classify each of the following phrases as descriptions for either ionic or covalent bonds.
, 7.
Look at the image below, which shows three identical molecules. Select all of the true statements about these
-2-2
molecules.
