stinky science 😔🤮

Question 1

Diffusion

Answer 1

Diffusion is the random movement of one gas through another form of high concentration

Question 2

What are the characteristics of Solids

Answer 2

-strong force of attraction (can vibrate), held close together (fixed), definite shape and volume

Question 3

Liquids

Answer 3

Weak force of attraction (compact), free to move, shape can change (flows to fit in container)

Question 4

Gas

Answer 4

weak force of attraction, free to move, constantly moving, does not keep fixed shape

Question 5

Gas pressure

Answer 5

when in heat expands as particles retrieve more energy, when particles cool down they dont have enough energy to move around.

Question 6

Expansion in gasses

Answer 6

Gas pressure, gas (expands better than solids & liquids) expands on heating and contracts on cooling, as the space between the molecules increases.

Question 7

Whats Conduction?

Answer 7

transferring kinetic energy to one another through collisions.

Question 8

Whats Convection?

Answer 8

Convection - occurs when hot air rises, allows cooler air to come in

Question 9

Whats Radiation?

Answer 9

Radiation is energy that moves from one place to another in a form called particles

Question 10

whats a element

Answer 10

pure substances, contains identical atoms or molecules w/ only 1 type of atomic core

Question 11

Whats a compund

Answer 11

pure substance, contains identical molecules w/ 2 or more types of atomic cores.

Question 12

whats a mixture

Answer 12

a material which has two or more types of molecules

Question 13

what a molecule

Answer 13

used to describe any atoms that are connected by chemical bonds

Question 14

how to do tell the difference between convection and conduction

Answer 14

the d in conduction stands for direct contanct

Question 15

how do you write the aim

Answer 15

To (verb) how (independent variable) impacts the (dependent variable)

Question 16

how do you write hypothesis

Answer 16

If (independent variable) is changed, then how is the (dependent variable) impacted?

Question 17

what is the overall rule for writing a scientific report

Answer 17

do not use personal pronouns such as “i think”

Question 18

Insulation

Answer 18

a material that stops the flow of energy examples of insulators can include glass, air, wood, plastic, and rubber

Question 19

Conduction (the insulation related one)

Answer 19

a material that allows the flow of energy examples of conductors can include copper, brass, steel, gold, aluminum.

Question 20

variables

Answer 20

Independent change
Dependant measure
Controlled variable same