1st 9 Weeks Review

Question 1

What helps you complete a task?

Answer 1

A tool

Question 2

A spring scale measures _____

Answer 2

Force

Question 3

Mass is measured with _____

Answer 3

A balance or triple beam balance

Question 4

Which 2 tools are used to determine the volume of an irregularly shaped pebble?

Answer 4

(Water displacement method) Graduated cylinder and water

Question 5

What is bioengineering?

Answer 5

The application of engineering to living things

Question 6

How do engineers use science?

Answer 6

Engineering uses scientific knowledge to develop new technology.

Question 7

Information gathered from experimentation or observation

Answer 7

Data

Question 8

Observing events, asking questions, and experimentation used to formulate laws and principles to discover more about our natural world.

Answer 8

Science

Question 9

What is technology?

Answer 9

A product or process designed to serve our needs.

Question 10

Using your senses to obtain knowledge

Answer 10

Observation

Question 11

Adaptive Bioengineering

Answer 11

Engineering that results in a product or process that changes living organisms, such as heart surgery, laser eye surgery, etc.

Question 12

Assistive bioengineering

Answer 12

Engineering that results in a product or process that helps living organisms, but does not change them, such as wheelchairs, eyeglasses, and crutches.

Question 13

What is a conceptual model?

Answer 13

A system of ideas.

Question 14

A pattern, plan, or representation of an object or system.

Answer 14

Model

Question 15

Law

Answer 15

A summary of many experiments, observations, and research to explain how something works.

Question 16

What did J.J. Thomson discover, which disproved the idea that atoms are indivisible?

Answer 16

The electron

Question 17

Who created the plum-pudding model?

Answer 17

J.J. Thomson

Question 18

Who was a British chemist who experimented with different substances and published an atomic theory?

Answer 18

Dalton

Question 19

Who found that electrons move in paths, or energy levels?

Answer 19

Bohr

Question 20

An atom’s atomic number is also… (2 things)

Answer 20

1. The number of protons in an atom

2. The number of neutrons in an atom (assuming the atom has no overall charge)

Question 21

How do you find the mass number of an atom?

Answer 21

Add the number of protons and the number of neutrons in the nucleus of an atom.

Question 22

If there is an element J-37, what is 37?

Answer 22

The element’s atomic mass/mass number

Question 23

If two atoms are isotopes, then ____

Answer 23

They have the same number of protons (and therefore the same element) but a different number of neutrons (and thus a different mass number)

Question 24

What is the atomic mass of an element?

Answer 24

The average mass number of all naturally occurring isotopes of an element.

Question 25

Atom : mass number :: element : ____

Answer 25

Atomic mass

Question 26

Theory

Answer 26

An explanation for some phenomenon based on observation, experimentation, and reason, but cannot be proven.

Question 27

What are the steps of the scientific method?

Answer 27

1. Ask a question 2. Form a hypothesis 3. Test the hypothesis 4. Analyze the data 5. Draw conclusions 6. Communicate results.

Question 28

What are the steps of the engineering design process?

Answer 28

1. Identify a problem and research a need 2. Imagine - develop possible solutions 3. Plan - Build a prototype 4. Create - Test and evaluate the prototype 5. Improve - Modifying the prototype and retesting it

Question 29

What is the independent variable of an experiment?

Answer 29

The factor that purposely varies throughout each experimental group in the experiment in order to test a hypothesis.

Question 30

What is the dependent variable of an experiment?

Answer 30

The result or effect of the independent variable; the outcome that depends on the variable.