SciShow

How to make snow

• Questions• 1. Making snow is basically what type of

exchange?• 2. How does water cool?• 3. What do snow makers need?• SciShow --- How to make snow

How to make snow

• Answers:• 1.A heat exchange• 2. By evaporating into water vapor• 3. Low air temperature and low humidity

Onions, Emotions, and Why We Cry

• Questions• 1. How many different types of tears do

humans have?• 2. Reflex tears are a defense against _______.• 3. Emotional crying is a good form of

______________.• SciShow --- Onions, Emotions, and Why We Cr

y

Onions, Emotions, and Why We Cry

• Answers• 1. 3• 2. Irritants• 3. Communication

The First Volcano Power Plant

• Questions• 1. _____% of energy in Iceland comes from

geothermal sources.• 2. When drilling for geothermal energy, hitting

_______ was considered a bad thing.• 3. Geothermal energy comes from the

_______.• SciShow --- The 1st Volcano Power Plant

The First Volcano Power Plant

• Answers:• 1. 30%• 2. Magma • 3. The Earth

The Terrifying Truth About Bananas

• Questions• 1. The banana is the #____ selling item at Wal-

Mart.• 2. The seeds in bananas that we eat are not

________.• 3. The Gros Michel banana was virtually

destroyed by the ___________.• The Terryfing Truth About Bananas

The Terrifying Truth About Bananas

• Answers• 1. #1• 2. fertile• 3. Panama Disease

Gold: The Big Bling

• Questions:• 1. Gold is resistant to _______.• 2. What is fusion? • 3. At ant one moment on Earth, there is only

30 grams of_________.• The SciShow --- Gold: The Big Bling

Gold: The Big Bling

• Answers• 1. tarnish• 2. 2 atoms smash together to form an atom of

a new bigger element• 3. Astatine

Helium

• Questions• 1. Helium is the ___ most abundant element in

the universe.• 2. There is ___ atoms of helium in the

atmosphere for every 1,000,000 atoms of atmoshpere.

• 3. The USA has a helium reserve in which state?• SciShow --- Helium

Helium

• Answers• 1. 2nd

• 2. 5• 3. Texas

Caffeine!!!

• Questions• 1. Caffeine is a bitter _________.• 2. Caffeine tricks your brain into thinking that it

is ________.• 3. How long does it take caffeine to peak in your

blood stream?• 4. Does caffeine meet the scientific definition of

an addictive substance?• SciShow --- Caffeine

Caffeine!!!

• Answers• 1. white powder• 2. not tired• 3. 30 minutes• 4. no

Microscope: The Tube That Changed the World

• Questions• 1. The first real microscope could magnify up

to _______ times.• 2. _________ is generally credited with

discovering cells.• 3. The ____________ microscope can show

things down to the atomic level.• SciShow: Microscope: The Tube That Changed

The World

Microscope: The Tube That Changed The World

• Answers• 1. 9 • 2. Robert Hooke• 3. Scanning Tunnelling

Who melted the Earth

• Questions• 1. Before the Earth was formed, it was an

___________.• 2. The Earth’s crust actually forms a nice layer

of ____________.• SciShow: Who melted the Earth

Who melted the Earth

• Answers• 1. Asteroid Belt• 2. Insulation

Laser Fusion – Is It Back to the Future Yet?

• Questions• 1. __________ is also known as energy

surplus.• 2. _________ is the beginning of a chain

reaction.• 3. What is ignition? • SciShow --- Laser Fusion -- Is It Back to the Fut

ure Yet?

Laser Fusion – Is It Back to the Future Yet?

• Answers:• 1. Fuel Gain• 2. Boot Strapping• 3. Fusion created enough energy to fuse the

rest of the fuel (hydrogen)

Dark Matter

• Questions• 1. Dark matter does not ______ or ______

light.• 2. Dark matter makes up ____% of the

universe.• 3. The ___________ gives particles mass when

they interact with the field.• SciShow --- Dark Matter

Dark Matter

• Answers:• 1. Omit and Absorb• 2. 23%• 3. Higgs Field

The Search For Antimatter

• Questions:• 1. Positron is just like an electron except that it

has a _____________.• 2. Nothing in the universe ever disappears,

this is the law of ____________.• 3. ________ is a term physicist use to describe

the various states that a particle can exist in.• SciShow --- The Search For Antimatter

The Search For Antimatter

• Answers• 1. Positive Charge• 2. Conservation of Mass• 3. Flavors

Dark Energy

• Questions• 1. Our universe is constantly _______.• 2. _________ tries to pull everything in the

universe back together.• 3. Dark Energy makes up _______% of the

energy in the universe.• SciShow --- Dark Energy

Dark Energy

• Answers• 1. Expanding• 2. Gravity• 3. 70%

Why Does Saturn Have Rings?

• Questions• 1. How many planets in our solar system have

rings?• 2. Most moons of the gas giants are outside

the __________.• 3. The rings of Jupiter are mostly ________.• SciShow -- Why Does Saturn Have Rings?

Why Does Saturn Have Rings

• Answers:• 1. 4• 2. Roche Limits• 3. Dust

Why Do Feet Smell Like Doritos?

• Questions• 1. Odor comes from _______.• 2. When does odor start to smell?• 3. People who exercise regularly lose fewer

______ in their sweat.• SciShow --- Why Do Feet Smell Like Doritos?

Why Do Feet Smell Like Doritos?

• Answers:• 1. Sweat• 2. When it comes into contact with bacteria

from your skin• 3. Amino Acids

What’s the oldest tree in the world?

• Questions• 1. A pine tree in _______ is over 5,000 years old.• 2. The average rainfall in the White Mountains

of California is less than ___ cm per year.• 3. ______ is a type of limestone.• 4. _______ is used to tell the age of a tree.• 5. ________ is the world’s heaviest living

organism.• SciShow --- What's the oldest tree in the world?

What’s the oldest tree in the world?

• Answers• 1. California• 2. 30• 3. Dolomite• 4. Crossdating• 5. Pondo

SciShow: Why Do Bug Bites Itch?

• Questions:• 1. Ant bites can contain a venom called

______.• 2. Mosquitoes have ____ different mouth

parts.• 3. ________ is a protein that helps fight

foreign invaders.• SciShow: Why Do Bug Bites Itch?

SciShow: Why Do Bug Bites Itch?

• Answers:• 1. Formic Acid• 2. 6• 3. Histamine • SciShow: Why Do Bug Bites Itch?

SciShow: How Does Tape Work?

• Questions:• 1. ________ has both the properties of a

liquid and a solid.• 2. Whatever you stick tape to is called the

_________.• 3. When you peel tape off you break the

___________________________.• SciShow: How Does Tape Work?

SciShow: How Does Tape Work?

• Answers:• 1. Viscoelastic• 2. Substrate• 3. Van Der Waals Bonds

SciShow: 3 Extreme Climate Fixes

• Questions• 1. ________ clouds can act as insulation.• 2.___________ can bounce solar energy back

into space.• 3. _______________ in oceans are places

where fish can’t survive.• SciShow: 3 Extreme Climate Fixes

SciShow: 3 Extreme Climate Fixes

• Answers• 1. Cirrus• 2. Cloud Whitening• 3. Dead Zones

SciShow: Why Does Ice Float

• Questions• 1. If Ice did not float, how would a river

freeze?• 2. Ice is less _______ than water.• 3. Oxygen attracts electrons more strongly

than __________.• 4. Ice has ________.• SciShow: Why Does Ice Float?

SciShow: Why Does Ice Float?

• Answers• 1. From the bottom to the top• 2. Dense• 3. Hydrogen• 4. Holes

SciShow: Kids and Sugar

• Questions• 1. How much evidence is there that sugar

intake makes healthy people more active?• 2. There is no link between sugar intake and

__________ in children.• 3. Sugar is metabolized almost immediately

unless you have ______.• SciShow: Sugar and Kids

SciShow: Sugar and Kids

• Answers• 1. None• 2. Hyperactivity• 3. Diabetes

SciShow: Your Brain is Plastic

• Questions• 1.___ years ago, scientist believed that your

brain could not learn anymore in adulthood.• 2. The process of learning alters the ________

of our brain.• 3. ____________ is basically our brain growing

in response to new conditions.• 4. The key to learning is ________.• SciShow: Your Brain is Plastic

SciShow: Your Brain is Plastic

• Answers:• 1. 20• 2. Structure• 3. Neural Plasticity • 4. Memory

SciShow: Anxiety Hurts

• Questions:• 1. The sympathetic nervous system is in

charge of the ____________ response.• 2. The Parasympathetic Nervous System

creates a ________ response.• 3. _______ means a balance.• 4. Chronic anxiety hurts or destroys _____.• SciShow: Anxiety Hurts

SciShow: Anxiety Hurts

• Answers:• 1. Fight or Flight Response• 2. Relaxed• 3. Homeostasis• 4. Cells

SciShow: Can We Get to Alpha Centauri?

• Questions• 1. What is our closest inter galactic member?• 2. How many stars are in Alpha Centauri?• 3. Alpha Centauri is ___ light years away.• 4. If a space ship was traveling 62,000 km per

hour, how long would it take to reach Alpha Centauri?

• SciShow: Can We Get to Alpha Centauri

SciShow: Can We Get to Alpha Centauri?

• Answers• 1. Alpha Centauri• 2. 3• 3. 4.3• 4. 70,000 Years

SciShow: What happens if you get struck by lightning

• Questions• 1. What is the chance that you will get struck by

lightning in your lifetime?• 2. How many types of lightning strikes exist?• 3. Lightning can heat the air around it to _____

degrees Celsius.• 4. Roy Sullivan was struck by lightning ___

times.• SciShow: What Happens if Your Struck by Lightni

ng

SciShow: What happens if you get struck by lightning

• Answers:• 1. 1 in 3,000• 2. 2• 3. 27,700• 4. 7

SciShow: Why do we make glowing rats?

• Questions:• 1. Glowing rats actually ____________ under

UV lights.• 2. Why do scientist make rats glow?• SciShow: Why do we make rats glow?

SciShow: Why do we make glowing rats?

• Answers• 1. fluoresce • 2. to see if the DNA they injected the rat with

got injected

SciShow: Oxygen is KILLING You!

• Questions• 1. Earth is about ____ oxygen.• 2. _________ is how we turn food we eat into

energy we need.• 3. Oxygen has been around ______ years.• 4. A _______ is when oxygen does not bond

correctly.• 5. _________ are molecules that inhibit oxidation.• SciShow: Oxygen is KILLING You!

SciShow: Oxygen is KILLING You!

• Answers• 1. 20%• 2. Cellular Respiration• 3. 2.2 billion• 4. Free radical• 5. Antioxidants

SciShow: Exotic Chemistry

• Questions• 1. Water found in Canada is at least ___ billion

years old.• 2. Water goes through the _____ cycle.• 3. __________ is the rarest naturally occurring

element on Earth.• 4. Targeted Alpha Therapy may be used to kill

__________.• SciShow: Exotic Chemistry

SciShow: Exotic Chemistry

• Answers• 1. 1.5• 2. Hydrological • 3. Astatine • 4. cancer cells

SciShow: Migraines: Not Just Another Headache

• Questions• 1. A migraine is a multi-symptom disorder of the

____________.• 2. ______ is a visual disturbance. • 3. Migraines and ___ have a lot of the same

symptoms.• 4. Migraines might be caused by a severe drop

in your brain’s ______.• SciShow: Migraines: Not just another headache

SciShow: Migraines: Not just another headache

• Answers• 1. central nervous system• 2. aura• 3. strokes• 4. serotonin

SciShow: Asteroids to watch out for

• Questions:• 1. Asteroids are ranked on a scale from 1 to _____.• 2. The highest ever rating was given to asteroid

_______.• 3. Asteroid 2011 AGS has a 1 in ____ chance of

hitting earth.• 4. Asteroid 1950 DA has a 1 in 300 chance to hit

earth in the year ____.• SciShow: Asteroids to watch for

SciShow: Asteroids to Watch for

• Answers:• 1. 10• 2. 2004 MN4• 3. 500• 4. 2880

SciShow: Asteroid Fly-by

• Questions:• 1. The Circumstellar Habitable Zone is the place

scientist look to find ___________________________.

• 2. 1 AU is the distance from the _______ to the sun.

• 3. Scientist have discovered nearly _______ planets.

• SciShow: Asteroid Fly-by

SciShow: Asteroid Fly-by

• Answers• 1. Extraterrestrial life• 2. Earth• 3. 800

SciShow: The Human Genome Project

• Questions:• 1. Humans have less than ________ protein

coding genes.• 2. A water flea has _______ protein coding

genes.• 3. A lot of human DNA came from _______.• SciShow: The Human Genome Project

SciShow: The Human Genome Project

• Answers:• 1. 30,000• 2. 31,000• 3. Viruses

SciShow: Fun With Potatoes and Physics

• Questions:• 1. ________ uses the potential energy of gas to do

work.• 2. Gases are _____.• 3. _________ says if pressure is increased at one spot

in a fluid, the pressure in the rest of the fluid will increase.

• 4. _________ means that if one goes up, the other must come down.

• SciShow: Fun With Potatoes and Physics

SciShow: Fun With Potatoes and Physics

• Answers:• 1. Pneumatics • 2. fluids• 3. Pascal’s Law• 4. Inverse

SciShow: Déjà Vu

• Questions• 1. The French word Presque Vu means ______.• 2. The ______ helps process memory data.• 3. The __________ helps with short and long

term memory.• 4. Most children do not experience déjà vu

until ___ or ____ years of age.• SciShow: Deja Vu

SciShow: Déjà Vu

• Answers:• 1. almost seen• 2. temporal lobe • 3. hippocampus• 4. 8 or 9

SciShow: Why Does Swiss Cheese Have Holes?

• Questions:• 1. All cheese is the product of _______.• 2. ________ is the sugar found in milk.• 3. What gas gets trapped in cheese?• 4. Who regulates the size of the holes in Swiss

Cheese? • SciShow: Why Does Swiss Cheese Have Holes?

SciShow: Why Does Swiss Cheese Have Holes?

• Answers:• 1. fermentation• 2. Lactose• 3. Carbon Dioxide• 4. The FDA

SciShow: Why Aren’t There Giant Insects

• Questions:• 1. Insects _____ in a different way than

humans.• 2. The tiny holes that insects use for breathing

is called ______.• 3. In the late Paleozoic Era, oxygen levels were

about ____%• SciShow: Why Aren't There Giant Insects?

SciShow: Why Aren’t There Giant Insects

• Answers:• 1. breath• 2. tracheoles• 3. 32

SciShow: Can You Really Be Scared To Death?

• Questions• 1._________________ is a sudden heart related

failure caused by fear.• 2. The Adrenal glands are located on top of your

_________.• 3. __________ syndrome is the western term

for when you die from an irregular shaped heart.

• SciShow: Can You Really Be Scared To Death?

SciShow: Can You Really Be Scared To Death?

• Answers• 1. Stress Cardiomyopathy • 2. Kidneys• 3. Broken Heart

SciShow: Why Do Zebras Have Stripes?

• Questions:• 1. What do Zebras live in?• 2. What is the effect called when a wheel hits

a certain speed and it appears to turn backwards?

• 3. Striping may ward off ________.• 4. No two Zebra’s striped are the _______.• SciShow: Why Do Zebras Have Stripes?

SciShow: Why Do Zebras Have Stripes?

• Answers• 1. Herds• 2. Wagon-Wheel Effect• 3. Biting Insects• 4. Same

SciShow: The Math and Mystery of Murmurations

• Questions:• 1. A starling group is a _________.• 2. A ______________ means a large group

diminishes the chance that an individual is attacked.

• 3. Starlings really move in groups of _______.• SciShow: The Math and Mystery of

Murmurations

SciShow: The Math and Mystery of Murmurations

• Answers:• 1. Murmuration • 2. Selfish Herd• 3. 7

SciShow: Absolute Zero: Absolute Awesome

• Questions:• 1. Absolute zero is -______ degrees Celsius. • 2. _______ said heat is just molecules moving

around in a substance.• 3. Absolute zero does not mean a complete

absence of _____ in a substance.• 4. The universe is ____ degrees Kelvin.• SciShow: Absolute Zero: Absolute Awesome

SciShow: Absolute Zero: Absolute Awesome

• Answers:• 1. 273.15• 2. William Thomson• 3. motion• 4. 2.7

SciShow: Why No Giant Mammals?

• Questions:• 1. The dinosaur Amphicoelias Fragillimus

weighed ___ metric tons.• 2. When did most of the dinosaurs disappear?• 3. How long are elephants pregnant?• 4. Mammals are _________, or warm

blooded.• SciShow: Why No Giant Mammals

SciShow: Why No Giant Mammals?

• Answers• 1. 122• 2. 65 Million years ago• 3. 2 years• 4. endothermic

SciShow: How Birds Really See The World?

• Questions:• 1. What type of light can birds see? • 2. The _______ is the spot in the retina with

the highest resolution.• 3. Birds with 2 foveas have eyes that can zoom

on things _____ and far.• SciShow: How Birds Really See The World

SciShow: How Birds Really See The World

• Answers:• 1. Ultraviolet light • 2. Fovea• 3. Near

SciShow: Darwin’s Darlings

• Questions• 1. A _______ plant captures and digestes insects.• 2. Most plants get ____________ through their

roots.• 3. A Venus Flytrap can take up to ___ days to digest

its meal.• 4. _________ evolution is where unrelated

organisms develop similar traits in response to their environments.

• SciShow: Darwin's Darlings

SciShow: Darwin’s Darlings

• Answers:• 1. Carnivorous• 2. nitrogen • 3. 10• 4. Convergent

SciShow: Why are there righties and lefties?

• Questions:• 1. _____ of the last 7 Presidents have been left

handed.• 2. The ________ hemisphere controls

movements on the left side.• 3. Lefties may inherit a lack of neurological

bias. • SciShow: Why are there righties and lefties?

SciShow: Why are there righties and lefties?

• Answers:• 1. 5• 2. right• 3. neurological

SciShow: Why do tornadoes hate America?

• Questions:• 1. How many continents have recorded a tornado?• 2. Between 65 and ____% of tornadoes occur in

the USA.• 3. The _________ supplies warm, moist air to the

United States.• 4. Most tornadoes are a product of ______

thunderstorms.• SciShow: Why do tornadoes hate America?

SciShow: Why do tornadoes hate America?

• Answers:• 1. 6• 2. 80• 3. Gulf of Mexico• 4. supercell