1. Are You Smarter Than a 5th Grader?

2. Fill in
Cooling off during the summer is an example of _______________.
homeostasis

3. Fill in When a scientist uses hearing as one of
the five senses during an experiment,
he is using
__________________.
qualitative data

4. Fill in
A lab process that includes breaking down parts of a cell, spinning it and studying parts of a cell is called _________________.
cell fragmentation

5. An independent variable in Redi’s experiment was ______________ jar.
gauze on the or covered

6. Fill in
One of the scientists in the past was ___________________ who disproved the theory that living things from non-living things.
Pasteur

7. Fill in A lab tool, called ____________,
is used to point at a specimen.
dissecting probe

8. Fill in
____________________ allow light to pass through the specimen and use two lenses to form an image.
Compound light microscope

9. Fill in
One of characteristics of living things is ________________ in which an organism(s) produce new organisms.
reproduction

10. Fill in
m = _________ km

11. Fill in
The variable that is observed and that changes in response to the independent variable is called _______________.
responding variable or
depending variable

12. The statement “the worm is 2cm long” is a(n)?
Quantitative observation
Qualitative observation
Inference
Hypothesis

13. An inference is?
a. The same as an observation
b. A logical interpretation of an observation
c. A statement involving numbers
d. A way to avoid bias

14. Measurable Observable Testable Correct
To be useful in science, a hypothesis must be?
Measurable
Observable
Testable
Correct

15. The term ‘spontaneous generation’ means that?
a. Living things can arrive from nonliving things
b. Living things arise from other living things
c. A maggot is part of the life cycle of a fly
d. Living things evolve over time

16. What system is used by scientists worldwide?
English system
American system
Metric system
European system

17. Which of the following statements about a controlled experiment is true?
All the variables must be kept the same
Only one variable is tested at time
Scientists always use controlled experiments
Controlled experiments cannot be performed on living things

18. A scientific theory is:
Another word for hypothesis
A well-tested explanation that involves a broad range of observations
The same as the conclusion of an experiment
The first step in a controlled experiment

19. The process in which two cells from different parents unite to produce the first cell of a new organism is called:
Homeostasis
Development
Asexual reproduction
Sexual reproduction

20. The process by which organisms keep their internal condition relatively stable is called:
Metabolism
A genome
Evolution
Homeostasis

21. Convert the following unit:
3.99m = _____ km
0.03
0.0399
0.0300

22. The combination of chemical reactions happening in an organism is called:
Development
Homeostasis
Growth
Metabolism

23. An instrument that produces images by focusing light rays is called a:
Light microscope
Transmission electron microscope
Scanning electron microscope
Electronic balance

24. Explain Pasteur’s famous experiment.
Pasteur’s experiment showed that boiled broth would remain free of bacteria even if air was allowed inn as long as dust and other particles were kept out.

25. What are 8 characteristics of living things?
-made up of cell(s), reproduce (sexually or asexually), have genetic code (DNA), grow and develop, use energy, respond to the environment, maintain a stable internal environment (homeostasis), change over time (evolution).

26. What is goal of science? The goal of science is to investigate and
understand nature, to explain events in
nature, and to use those explanations to make useful predictions.

27. How does an observation about an object differ from an inference about that object?
An observation uses senses to gather information; an inference is an interpretation based on prior knowledge and experience.

28. How does a hypothesis help scientists understand the natural world?
Hypotheses help scientists by suggesting testable explanations for a set of observations. Hypotheses are starting points for discovering new information.

29. Describe three possible ways in which a hypothesis may arise.
A hypothesis may arise from:
Prior knowledge
Logical inferences
Imaginative guesses

30. Why is it advantageous for scientists to test only one variable at a time during an experiment?
Scientists should only test only one variable at a time so that the only one observable factor affects the outcome of the experiment.

31. Distinguish between a variable and a control.
A variable is factor in the experiment that exists in differing amount or types.
A control includes those factors that remain constant (the same).

32. What steps are involved in making a conclusion?
Scientists use data from experiments to evaluate a hypothesis and draw a conclusion that is, they use the data to support or refute the hypothesis.

33. Describe the impact Pasteur’s work had on the scientific community.
Pasteur showed that all living things come from other living things, which was a major shift in how scientists viewed living things. He also demonstrated that infectious diseases were results of microorganisms entering the bodies of their victims.

34. What must happen for a hypothesis to become a theory?
For a hypothesis to become a theory, it must be supported by extensive observations and many tests/experiments.

35. How are unicellular and multicellular organisms alike
How are unicellular and multicellular organisms alike? How are they different?
Unicellular and multicellular organisms are alike in that they all perform 8 life functions or characteristics. They are different in that unicellular organisms are one-celled and multicellular organisms have more than 1 cell.

36. Why do scientists find it helpful to use the metric system?
The metric system is easy to use because it is based on multiples of 10 and is universally accepted by scientists.

37. How can a graph of data be more informative than a table of the same data?
A graph of data can be more informative than a table because patterns of change are usually more easily seen in a graph.

38. What is a cell culture? How can a cell culture be useful to biologists?
A cell culture is a group of cells produced when a single cell is placed in a nutrient solution and allowed to reproduce. Scientists can use cell cultures to test bacterial responses under controlled conditions and to identify bacteria.

39. Are You Smarter Than a 4th Grader?