Units A, B, C

Question 1

What are the two main nervous systems

Answer 1

The central and peripheral nervous systems

Question 2

If you accidentally touch a hot stove is the reaction a response or a reflex

Answer 2

it is an involuntary reflex to keep us safe from being burnt

Question 3

How is waste from the body extracted and disposed of in the excretory system

Answer 3

It is separated by the nephrons and then travels through the urinary tract in the urine

Question 4

How does air enter the bloodstream

Answer 4

It enters the blood through tiny, branched out bronchi in the lungs

Question 5

What is the organizational pattern of the units of life from smallest to largest

Answer 5

Cell - tissue - organ - organ system from smallest to largest

Question 6

What cell gathers sunlight for a plant

Answer 6

Chlorophyll is the cell used in plants photosynthesis

Question 7

Describe the process in how we feel things

Answer 7

the dendrites sense it and send it to the neurons which is sent to the axons that send it to the rest of the body to act upon the stimuli

Question 8

What is the most common color of cells

Answer 8

Trick question the most common “color” is transparent

Question 9

What is the purpose of cells

Answer 9

To make tissues or perform a special function

Question 10

Where is blood produced

Answer 10

Red, white and platelets are all made In the bone marrow

Question 11

What is the purpose of the skin

Answer 11

The largest sensory organ that sends stimuli from the environment to the brain

Question 12

What systems makes the heart pump

Answer 12

The muscle, nervous, circulatory and the respiratory system are the key systems in the hearts function

Question 13

What are the layers of the bone

Answer 13

The hard outer layer, the spongy, softer layer, and the bone marrow

Question 14

What does a tendon do

Answer 14

Helps to move the bones

Question 15

What does a ligament do

Answer 15

Connects the muscle to the bones

Question 16

How do you calculate mechanical advantage

Answer 16

Output force over input force

Question 17

Why did rube Goldberg start drawing his machines in his cartoons

Answer 17

It was a joke to show how the government did things the hard way all the time

Question 18

How do you calculate the speed ratio

Answer 18

Opposite of mechanical advantage: input over output

Question 19

What direction can a pulley move an object

Answer 19

A pulley can move an object any direction depending on its orientation

Question 20

What simple machines are used in a pair of scissors

Answer 20

A wedge and a lever are used in a pair of scissors

Question 21

What is a machine with two simple machines called

Answer 21

It is called a complex machine

Question 22

What is a knife

Answer 22

Very sharp

Question 23

Is a fencing screw a complex machine

Answer 23

Yes it has a wedge at the tip and a grooved body made of inclined planes

Question 24

Did your rube Goldberg machine work (yes, no, why or why not)

Answer 24

No correct answer just talk to yourself for a second

Question 25

Other than cutting what is the most common use for a wedge

Answer 25

It is most commonly used for a fulcrum

Question 26

What two simple machines would be the best for making a hole

Answer 26

A wedge or a screw would be the best to make a hole

Question 27

Can a simple machine be made of other simple machines

Answer 27

Yes a pulley is a wheel and axle and a wedge is two inclined planes

Question 28

What simple machine is a spike

Answer 28

A cylindrical wedge

Question 29

Can animals use simple machines

Answer 29

Yes porcupine’s uses sharp wedge shaped quills for defense

Question 30

Find one of each of the six simple machines in forty-five seconds

Answer 30

(1 object click one) (2 objects click two) I'm sure you figured out the pattern

Question 31

How do you find mass

Answer 31

A scale

Question 32

How do you find volume

Answer 32

Base X Width X height = volume

Question 33

What shape is used to organize the Volume, mass, and density of objects

Answer 33

A triangle

Question 34

A mechanical mixture is

Answer 34

Something that can be filtered and separated by hand

Question 35

How might a suspension tower be useful

Answer 35

You could use the density of a known liquid and see if the unknown substance floats or sinks giving you a better idea of the density

Question 36

What does the viscosity mean

Answer 36

It is the rate of flow of an object, the more viscous the slower it flows and the lower the viscosity the faster it flows

Question 37

What is a pure substance

Answer 37

A periodical element that has nothing but the element

Question 38

What has a lower viscosity than a liquid

Answer 38

A gas

Question 39

Why might a diet soda float when a regular soda sink

Answer 39

The diet soda is less dense because of it being sugar-free and having less of other things being dissolved in it

Question 40

What two forces are affecting a boat in the open water

Answer 40

The downward gravitational force and the upward buoyant force

Question 41

What is one common gas that is heavier than oxygen

Answer 41

Carbon dioxide is heavier than oxygen

Question 42

What is an attractive force

Answer 42

It is how strongly bonded the particles of a substance are

Question 43

What has a stronger attractive force, honey or water

Answer 43

Honey has a stronger attractive force because when it is poured it won't segment into multiple pools but into one large pool of honey

Question 44

Why can't you use oxygen in a fire extinguisher

Answer 44

Because oxygen is a fuel for the fire and would just worsen the problem

Question 45

what liquid does MR Foisy let us use that has the | highest viscosity

Answer 45

the rogers syrup has the highest viscosity