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Unit 1: How to be a Scientist
Unit 1 Test Review
Period #
January 21, 2010
1) Eukaryotic cells have membrane-bound _______________________, such as the _______________ (where
DNA is stored), whereas _____________________ cells do not have a nucleus.
2) If you see a living thing with your eyes, it must be made up of what kind of cells?
3) Humans are multi-cellular organisms. Therefore, they must be made of _________________ cells.
4) All single celled organisms are made up of what kind of cells?
5) All cells, whether prokaryotic or eukaryotic contain what three things?
6) Where is DNA located in prokaryotic cells? Where is DNA located in eukaryotic cells?
7) Label the cells below as either prokaryotic or eukaryotic. Describe how you know each one is either prokaryotic
or eukaryotic.
8) You are walking down the hallway and you see a student wearing a college hoodie and with a big smile
on his face. He also has a letter from that college. Write a hypothesis that is both EDUCATED and
TESTABLE to the question: Why is this guy so happy?
9) Rayvan is doing an experiment to see if darker pants have more dirt on them than lighter pants. Identify
the INDEPENDENT VARIABLE, DEPENDENT VARIABLE, and two things he should keep CONSTANT.
10) Kenya is doing an experiment asking the question, “Does the amount of sunlight in a classroom affect the
test scores of West Jeff students? Identify the INDEPENDENT VARIABLE, DEPENDENT VARIABLE,
and two things she should keep CONSTANT.
Directions: For each of the following graphs answer these questions
1) What was the scientist who made this graph trying to answer?
2) What conclusions can you make from this graph? (THERE ARE
MANY)
3) Choose one of the following: (OR BOTH IF YOU ARE A BALLER)
Describe one flaw in the graph, and how you would fix it.
OR
Describe one follow-up experiment you could do to learn more about
this topic
All life is characterized by these three things:
____________________________________
____________________________________
____________________________________
Directions: Describe if the following are alive and EXPLAIN WHY using the three characteristics of living things.
Rain:
Candy canes:
Corn:
Cheetah:
Cheetos:
Cheerios:
Cheerleaders:
Computer:
Volcano: