quiz - 2/7/24

Question 1

what is sampling and why is it used by scientists

Answer 1

Sampling is trying something. So an experiment. It is used by scientists so they can find out what is and what isn’t true.

Question 2

What is an experiment

Answer 2

An experiment is a procedure to test the hypothesis.

Question 3

Scientists solve problems using the

Answer 3

Scientific Method

Question 4

List the characteristics shared by all living things.

Answer 4

1. All living things are composed of cells
2. in multicellular organisms, many are specialized to perform specific functions
3. Cells are always very small
4. The size of multi-celled organisms depends on the number of cells NOT their size.

Question 5

Define hypothesis

Answer 5

a suggest solution to the problem

Question 6

What is homeostasis and give an example

Answer 6

Homeostasis is the maintain of stable internal conditions. Like when we get hot our body sweats to cool us down.

Question 7

Name the 2 types of variables in a controlled experiment

Answer 7

The independent and dependent variable

Question 8

After data is collected and organized, it must be __________to tell if it is reliable.

Answer 8

retested

Question 9

Both groups in an ___________ are ___________ except for the variable

Answer 9

experiment

identical

Question 10

If experimental data does not support the hypothesis, what should be done?

Answer 10

Then you take the experiment again

Question 11

The energy from metabolism is used for
1.
2.
3.
of organisms

Answer 11

1. molecular and cellular organization
2. grow
3. reproduction

Question 12

Define theory

Answer 12

a well tested explanation that makes accurate predictions

Question 13

How is a theory formed

Answer 13

A theory is formed after multiple experiments and trials

Question 14

All living things are composed of …

Answer 14

Cells

Question 15

What does a scientist usually employ in making their observations

Answer 15

Scientists use all of their senses such as sight, touch, smell, hear, and very rarely taste

Question 16

define metabolism

Answer 16

the combination of chemical reactions in a living organism.

Question 17

What is the first step of the scientific method?

Answer 17

The first step of the scientific method is when scientists make an observation of the natural world.

Question 18

What is quantitative data?

Answer 18

data collected with numbers

Question 19

Once an observation is made, the second thing a scientists must do is to develop a(an)

Answer 19

Hypothesis

Question 20

What is a prediction and how are they usually written?

Answer 20

A preditction is a well educated guess or a solution to a problem. A prediction or a hypothesis is written as an if then statement. So if I said this: If I go in the pool then my clothes will get wet.

Question 21

Name the 2 groups in a controlled experiment.

Answer 21

control group and the experimental group

Question 22

Is growth a characteristic of living and nonliving things

Answer 22

Growth is a characteristic of a living thing but not a non living thing. If you think about it a book or a computer doesn’t grow a human, plant or animal grow.

Question 23

Define development

Answer 23

the process by which an adult organism arises.

Question 24

Define Data

Answer 24

the result of the Experiment

Question 25

All hypotheses must be ___________ to give supporting evidence.

Answer 25

Testable

Question 26

What do scientists do with the results of their scientific studies

Answer 26

They make sure they do a lot of tests to make sure it could be correct or a theory and then they share itwith others so they can learn.