IsaacUnit1and3StudyGuideCards

Question 1

Thermal Energy always travels from areas of ___ to ___?

Answer 1

Hot to cold

Question 2

The warmer the temperature of something the ___ the atoms or molecules move.

Answer 2

More

Question 3

Thermal energy is ___ traveling from one area to another area.

Answer 3

Always

Question 4

When a black surface absorbs light waves it turns the energy into ___?

Answer 4

Heat

Question 5

Condensation on the outside of a cup comes from _____?

Answer 5

the atmosphere

Question 6

What state of matter is water vapor in?

Answer 6

Gas

Question 7

What state of matter is condensation in?

Answer 7

Liquid

Question 8

What state of matter is evaporation (water vapor) in?

Answer 8

Gas

Question 9

What is transferred to something else for water gas molecules to become liquid molecules?

Answer 9

Energy

Question 10

For condensation to form on an object, the object’s temperature has to be ____ than the air around it?

Answer 10

Colder

Question 11

A closed system is when molecules ___ travel in and out of the system.

Answer 11

Can’t

Question 12

In a closed system ____ can still travel in and out of the system.

Answer 12

Heat

Question 13

What is the chemical formula of a water molecule?

Answer 13

H20

Question 14

Molecules/atoms that are in a solid state have very low ____?

Answer 14

Movement

Question 15

An open system allows ____ AND ____ to transfer in and out of the system.

Answer 15

Heat AND molecules

Question 16

All matter is made up of these three things:

Answer 16

Atoms
Molecules
Particles

Question 17

Molecules are made up of 2 or more ____?

Answer 17

Atoms

Question 18

The smallest unit of matter is called an ___?

Answer 18

atom

Question 19

Two or more atoms bonded together is called a ____?

Answer 19

Molecule

Question 20

Define “evaporation”

Answer 20

The process of turning liquid into a vapor

Question 21

Define “condensation”

Answer 21

The process of turning vapor (gas) into a liquid

Question 22

Define “thermal energy”

Answer 22

Heat energy. Thermal energy is always transferred from hotter areas to colder areas. All materials have thermal energy.

Question 23

Define “closed system”

Answer 23

Does not allow the transfer of matter in or out of a system, but does allow energy to be transferred.

Question 24

Define “open system”

Answer 24

Does allow the transfer of matter and energy in or out of a system.

Question 25

Define "kinetic energy"

Answer 25

Energy an object has because of its motion (energy of the molecules). A fast moving ball has more kinetic energy than a slow moving ball.

Question 26

Define "temperature"

Answer 26

Average kinetic energy of particles within a substance or area.

Question 27

What is the formula for density?

Answer 27

d = M/V (density is mass divided by volume)

Question 28

What are the first five steps in the scientific method flow chart?

Answer 28

1. Ask a question 2. Do background research 3. Construct a hypothesis 4. Test with an experiment 5. Procedure working?

Question 29

If the procedure is working, what is the next step in the scientific method flow chart?

Answer 29

Analyze data and draw conclusions

Question 30

If the procedure isn't working, what is the next step in the scientific method flow chart?

Answer 30

Trouble-shoot procedure, carefully check all steps and set-up. THEN go back to the "test with an experiment" step.

Question 31

What if you analyze the data and draw conclusions and it all aligns? What is the next step?

Answer 31

Communicate results

Question 32

What if you analyze the data and draw conclusions and it doesn't align?

Answer 32

Ask a new question, form a new hypothesis.

Question 33

What are the full seven steps of the Scientific Method Flow chart if everything checks out and aligns?

Answer 33

1. Ask a question 2. Do background research 3. Construct a hypothesis 4. Test with an experiment 5. Procedure working? 6. Analyze data and draw conclusions 7. Communicate results

Question 34

What is an independent variable?

Answer 34

The independent variable is the one that is changed by the scientist. (Why just one? Well, if you changed more than one variable it would be hard to figure out which change is causing what you observe.)

Question 35

What is a dependent variable?

Answer 35

The dependent variables are the things that the scientist focuses his or her observations on to see how they respond to the change made to the independent variable.

Question 36

What is a control group in an experiment?

Answer 36

"Control group, the standard to which comparisons are made in an experiment." "A control group is a group in an experiment on which a variable is not being tested, such as a test subject that does not receive any treatment."

Question 37

What do less dense objects do when put with more dense objects?

Answer 37

Float on top

Question 38

Tell me a bit about what Archimedes discovered? (Hint: it had to do with a crown.)

Answer 38

Gold and silver/density and displacement of water.