science 1.2

Question 1

how do scientists find out things?

Answer 1

By conducting scientific investigations

Question 2

steps in conducting scientific investigations

Answer 2

1.observe 2. form a hypothesis 3.design and do experiments 4. analyse 5.draw a conclusion

Question 3

if the experiment doesn’t support hypothesis what do we do? first and if its still wrong what to do?

Answer 3

First , repeat the experiment to make sure no mistakes, if still wrong then
modify the hypothesis and repeat the experiment

Question 4

steps:
They first observe ______ and ______.Then form a hypothesis to ________the observation. They test the hypothesis by doing ___________.In experiments , they ________ accurately and _________ the experimental results. Finally they ______ the experimental results and draw a _________.

Answer 4

carefully , systematically , explain , experiments , measure , record , analyse , conclusion.

Question 5

What is science based on ?

Answer 5

Evidence

Question 6

how is acceptable scientific knowledge considered?

Answer 6

If the hypothesis of the experiment is supported , enough evidence and the hypothesis is believed to be correct .

Question 7

When we study science, we should not _______ scientific knowledge only as ________ ____ ______
why?

Answer 7

regard , facts to memorize

Bc scientific knowledge is subject to change.

Question 8

examples of science process skills 3ex

Answer 8

observing , classifying , designing investigations , doing experiments , ,inferring , communicating

Question 9

what type of variables are there in a fair test?

Answer 9

Independent variable , dependent variable , controlled variables

Question 10

In a fair test , there should only be _(number)__ independent variable. All other variables should be kept the ______. We call these variables ______ variables.

Answer 10

1 , same , controlled

Question 11

beside fair tests , have what other type of scientific investigations?

Answer 11

Classifying , Pattern seeking , Module building

Question 12

what does classifying involve? branch of Science example 1

Answer 12

comparing the similarities and differences between objects, sorting with similarities into groups. biology

Question 13

what does pattern seeking involve?

branch of Science example 2

Answer 13

observing and recording natural phenomena , find a pattern , geology , astronomy

Question 14

what does model building involve?

branch of Science example 2

Answer 14

Represent objects that are too small/big to see

Biology ,Astronomy