practice of science quiz/test

inference

A conclusion reached on the basis of evidence and reasoning

not hypothesis

A prediction about the outcome of an investigation. hypothesis or not hypothesis

not hypothesis

A question asked at the beginning of an investigation. hypothesis or not hypothesis

hypothesis

A statement that may lead to a prediction. hypothesis or not hypothesis

hypothesis

Compound A will prevent the spread of bacteria B because....\

theory

Compounds in the category A will have broad ability to kill microbes because....

hypothesis

Developed from imagination & creativity

not hypothesis

Eventually becomes a theory, then a law

experiment

Finding out if mealworms prefer light or dark by testing it.

A procedure is followed, Only one variable is changed, Precision and accuracy are used to record data

How is a scientific experiment different from other investigations?

the theory could be changed

If a theory is challenged by new evidence, which of the following could occur?

law

In every case, male birds are either similar or more colorful than their female counterparts.

not hypothesis

Included as a part of all scientific investigations

scientific law

It is an empirical (i.e. based on observation alone) statement of something which always appears to be true.

Mai's idea is not supported by scientific evidence.

Mai tells Jaz his theory about what sea turtles nest on the beach instead of in the ocean. She says, "The turtle eggs would sink to the bottom of the ocean, and the baby turtle would drown." Mai says her uncle, a fisherman, told Mai this information. Jaz tells Mai that her theory is not scientific. Why does Mai's idea not meet the requirement to be a scientific theory?

model

Making an analogy, building a paper airplane, or developing a mathematical equation is an example of a _____________

hypothesis

May guide an investigation. hypothesis or not hypothesis

bigger or smaller

Models can be ________ or ______________ than the object they represent.

past as well as predicting the future

Models help represent the ____________ as well as predicting the ___________

not hypothesis

Must be in the form of "if...then..."

experiment

Observing a group of people to find out if they put a puzzle together faster if they practice first.

Investigation

Observing temperature changes throughout the day on the playground. Experiment or Investigation

form theories to explain laws

Often scientists form ____________ to explain _____________

Investigation

Recording the number of birds that visit a feeder at the same time each day.

Investigation

Researching the best way to germinate seeds using the Internet

A nonnative plant species will begin to reproduce rapidly after being introduced into a swamp ecosystem.

Scientific knowledge may change as new evidence or information is discovered. Which of the following would NOT be a result of new scientific research and information?

physical and mathematical

There are two types of models: ______________ and ______________

theory

There is a strong connection between nutrition and a variety of cancers.

the law of gravity

This law tells us the size of the gravitational force, but it does not explain why gravity exists or even why it is as strong as it is.

hypothesis

Used to decide what data to pay attention to & seek

not hypothesis

Used to prove whether something is true

Laws describe what happens but theories explain why or how.

What is the difference between a scientific theory and a scientific law?

hypothesis

Zinc in the diet will lower the rate and intensity of viral outbreaks.

theories and hypotheses

______________ and ______________ are both explanations

scientific theory

______________ is a much broader statement, with a wide variety of potential applications than a hypothesis. Hypotheses are more tentative, but even more importantly, they apply to a rather specific and narrow set of circumstances, while a theory applies to a great number of problems.

scientific theory

a ___________ has much more experimental support than a hypothesis

not true of a theory

a scientific law has been proven and a theory has not. true of a theory or not true of a theory

generalization not an explanation

a scientific law is a ____________ and NOT an _______________

hypothesis

a statement that can be tested. hypothesis or not hypothesis

scientific hypothesis

a tentative explanation of an observation or pattern which has been observed in nature.

hypothesis

a tentative explanation. hypothesis or not hypothesis

theory of evolution

a theory (as opposed to a hypothesis) because it has very broad applications and explanatory power. We can explain the entire fossil record and the genetic code of all plants, animals and other forms of life using this theory. It is the breadth of the theory more than the amount of support, which makes it a theory. In fact, the day it was published (1859 by Darwin) it was already a theory, not just a hypothesis, not because of all the support (the support was still weak at the time) but because of the wide range of things it could explain.

not true of a theory

a theory never changes. true of a theory or not true of a theory

hypotheses and theories

an attempt to explain what has been observed

not hypothesis

an educated guess. hypothesis or not hypothesis

scientific law

an empirical (ie based on experimental evidence) statement of great generality of something which seems to always be true.

cause and effect relationship

an experiment establishes what

variables

an experiment involves what

investigation

an experiment is a special kind of what

scientific method, hypothesis

an experiment use ____________method to test ____________

scientific theory

an explanation of a natural phenomenon with a broad range of significance and application.

by only dealing with data collection

an investigation is only limited to what

not hypothesis

an investigative question. hypothesis or not hypothesis

model

analyzing whale migration patterns with a computer program. model or not model

model

building a paper airplane. model or not model

model

building and testing a bridge made of toothpicks. model or not model

mathematical model

can be a graph or a mathematical equation.

physical model

can be a map, diagram, etc. or a heart.

models

can be used to study objects that are too large or too small to see

controlled

constants are ______________ so that they don't change from what to what

model

demonstrating day/night cycle with a globe and flashlight. model or not model

model

developing a mathematical equation to solve a science problem. model or not model

not a model

dissecting a cow's bone. model or not model

model

drawing an electrical circuit. model or not model

should include a hypothesis, material, procedures, data collection, data analysis, and a conclusion.

experiment info should include what

model

forming a mental image of molecules in the liquid state. model or not model

not a model

going on a field trip to the Grand Canyon. model or not model

model

graphing the speed of a car. model or not model

an experiment

if the data you collected does not answer your question then what might you need to do

a question, the method, data collected, and their conclusion.

investigation info should conclude what

fact

is an observation a fact or an opinion

not true of a theory

laws are more important to science than theories. true of a theory or not true of a theory

not a model

looking at blood cells under a microscope. model or not model

model

making a plant cell out of household materials. model or not model

model

making a replica of a human heart out of clay. model or not model

model

making an analogy (heart is like a pump). model or not model

not a model

observing a bird's behavior at a bird feeder. model or not model

inferences

once you make an observation you can begin to make what

the first and second law of thermodynamics

tells us that every experiment ever done leads to the conclusion that energy is always conserved. It is an empirical fact, but it is not an explanation. extremely successful at predicting what processes are spontaneous, but it cannot explain why entropy increase causes spontaneity.

observing or studying the natural world, without interference or manipulation.

the process of investigation includes what

scientific law

the result of induction

not true of a theory

theories are hunches scientists have. true of a theory or not true of a theory

not true of a theory

theories are incomplete temporary ideas. true of a theory or not true of a theory

true of a theory

theories are inferred explanations, strongly supported by evidence. true of a theory or not true of a theory

true of a theory

theories are used to make predictions. true of a theory or not true of a theory

not true of a theory

theories can include personal beliefs or opinions. true of a theory or not true of a theory

true of a theory

theories have been tested many times. true of a theory or not true of a theory

true of a theory

theories include observations. true of a theory or not true of a theory

model

visual representations that help scientists study something in more depth.

model

watching a computer simulation of a hurricane. model or not model

not a model

watching a live video of an active volcano. model or not model

to what variable you are collecting data on

what are experiments limited to

you collect data that will help you answer your question

what are the benefits of an experiment

to gather data that you are interested in and may wish to do an experiment on

what are the benefits of an investigation

your 5 senses

what do you use to prove an observation

the latte feels hot

what is an example of an observation

constant variables

what other variable does an experiment use

hypotheses and theories are similar while law is very different

what two concepts are similar and which is very different

independent (manipulated) and dependent (outcome)

what type of variables are in an experiment

experiments

you may need to do more ___________ to fully answer your question