• +28575

  How do jellyfish know where they are going without eyes

  Krissi — Elk Grove Village, IL

• +25774

  How does 3D printing work?

  Shannon — Sun Valley, CA

• +22691

  Why do we like having friends?

  Grace — Mt. Pleasant , MI

• +21962

  Why is there a red spot on Jupiter?

  Heidi — Knoxville

• +21845

  How are people beautiful on the inside?

  Megan — Midlothian

• +20424

  Why are peaches fuzzy?

  Mackenzie — Livonia, MI

• +20269

  Why is seven considered a lucky number?

  Nicholas — Merrick, NY

• +19879

  Do toads give you warts?

  Ernest — Crestview, FL

• +19569

  How does a toy top spin without falling down?

  Ms. Sanna's 2nd Grade Class — Batavia, IL

• +19468

  what is Vitiligo

  Valarie — Hyde Park , MA

• +18732

  who is malcom x

  Cordarryl — Chicago, IL

• +18632

  What is dark matter?

  Ms. Keller's 3rd Grade Class — Greenwich , CT

• +18325

  How does the electoral college work?

  Mrs. Hall's Class — Arlington, VA

• +18140

  what is the tallest staircase ever

  William — Raleigh, NC

• +17783

  How do we navigate using stars?

  Justine — Union City, CA

• +17721

  What is the longest river on Earth?

  Jenni — Imperial Beach, CA

• +17007

  Was King Arthur a real person?

  Amy — Irvine, CA

• +16745

  What is a pinhole camera, and how does it work?

  Charis — Houston, TX

• +16480

  WHY DO STARS TWINKLE?

  Joey — Mineral Wells

• +16243

  Why is art a lot of money

  Blake — Spring, TX

• +16107

  What is a coat of arms?

  Stephanie — Pasadena, MD

• +15596

  What is the Harlem Renaissance?

  Julie — Dedham, MA

• +15596

  what is cerebral palsy?

  Ms. Clanton's 5th Grade Class — Concord, NC

• +15097

  How does a color printer print all the different colors?

  Mr. Craft & Mr. Thornton's class — Charlottesville, VA

• +14570

  What do kids play in other countries?

  Michelle — Wrightsville , PA

• +14344

  What are Quantum Physics?

  Legacy — Las Vegas

• +14196

  how do you control moving?

  Amelia — Catonsville , MD

• +14157

  Who discovered the first dinosaur bone?

  Charlotte — Chagrin Falls, OH

• +13964

  What is the president's cabinet?

  Kaspar — Stillwater, MN

• +13946

  why do green sawfish have a body part that looks like a saw?

  Lucas — Caledon

• +13823

  How does Crystal Glass produce certain tones when rubbed on top with water?

  Brandon — Oshawa

• +13733

  How does a website remember all of the usernames and passwords?

  Nadya — Forked River, NJ

• +13604

  Where can you find a mummy?

  Gerson — Pasadena

• +13307

  how do you create a video game

  Destinee — New Jersey, NJ

• +13221

  How bees make honey

  Nicole — Vaucluse

• +12746

  Exoplanets

  Anish — Marlboro, NJ

• +12625

  What is nanotechnology

  Monique — Dallas, GA

• +12612

  why are there beached whales

  Collin — St. Francis, MN

• +12604

  Who was King Tut?

  Dana — Richmond, TX

• +12514

  How did Tennessee get their nickname The Volunteer State?

  Ms. Thurman's Class — Cookeville, TN

• +12498

  How do you build a building such as a school?

  Jessica — Union Grove, WI

• +12493

  How were Americans able to win the Revolutionary War?

  Gabrielle — chicago, IL

• +12311

  do animals use GPS

  Kartik — AUCKLAND

• +11967

  How do you be internet safe?

  Gabriel — Los angeles, CA

• +11933

  How does cow manure turn in to fertliszer

  Owen — Seattle, WA

• +11776

  How do trees create sap?

  Ms. Rye's 5th Grade class — Sioux Falls

• +11659

  What is the difference of a PSA and a commercial?

  Jason — Eastvale, CA

• +11557

  What is biomimicry?

  Amy — San Antonio, TX

• +11526

  Why are guninea pigs called guinea pigs when they do not look like pigs?

  Robin — Wallingford, CT

• +9935

  How many cars are on the road at one time?

  Mrs. Clark's Class — River Falls

• +9888

  Why are dimes smaller than pennies?

  Acacia — Round Rock, TX

• +9665

  How is liquid nitrogen made?

  Sarah — Edison, NJ

• +8844

  What do we feel and not see in the air?

  Vala — Puebla, Mexico

• +8543

  Why don't all markers work on white boards?

  Jon — Merrick, NY

• +8403

  Why do houses have windows?

  Nathaniel — Oshawa, Canada

• +8042

  dose red and yellow realy make you hungry

  Grace — Broome

• +7499

  How does an atoll form?

  Kierstan — Granby

• +7467

  Why are some people introverted and some people extroverted?

  Ms. Nolen's class — Shawnee, KS

• +6933

  How do bees and wasps make their hives and what material is it made from?

  Ms. Gildea’s 3rd Grade Class — North Andover, MA

• +6575

  why are they called super foods

  zach — lees summit , MO

• +6455

  How was the telescope invented?

  Miss Lipman's Class — Greenwich

• +6323

  Do frogs hibernate?

  mark — Lockhart, TX

• +6291

  How do scissors cut? When were they invented?

  Ms. Pawlik's Class — Clinton Township

• +6240

  What are Sinus Cavities?

  Legacy — Cookeville, TN

• +5858

  Why was the Periodic Table made?

  Ryan — Delaware, OH

• +5843

  Why are planets spherical and not cuboid or any other shape.

  Sonika — stone ridge, VA

• +5505

  Where do birds go at night? (If I shook a tree, would they wake up?)

  Judy — South Salem, NY

• +5485

  What are nutrons, electrons, and protons?

  Andrew — San Diego, CA

• +5412

  Who made tic-tak-toe?

  Trishelle — oskaloosa, IA

• +5400

  What is the most popular book of all time?

  Amy — McLean, IL

• +5345

  how do CDs work?

  Belinda — South Africa

• +5226

  Do decomposers decompose decomposers?

  Mrs. Hoge's fifth grade class — Sunbury, OH

• +4947

  Who was Muhamad?

  Heba — Fontana

• +4923

  Why do people get headaches from different scents ?

  Amanda — Fort Erie

• +4788

  how do they get bubble gum in a lollipop?

  Jan — Palm Bay, FL

• +4779

  Why do people speak with an accent?

  andrew — Charlottesville, VA

• +4726

  Why do we think?

  Ashish — Tirur

• +4716

  How do our eyes make us see?

  Alix — Lincoln

• +4711

  What is surface tension and how does it work?

  Koenig Class — Arlington Heights, IL

• +4632

  Why do people wish on dandelions?

  Lina — Austin, TX

• +4524

  Why do computers crash?

  Anonymous — west plains, MO

• +4506

  How do the astronauts build a space center in space?

  Sarah — Houston , TX

• +4498

  How are rocks made

  Ms. Noble's Grade 3 Class — Barrie

• +4490

  What is plastic made of?

  harrisen — oskaloosa, IA

• +4472

  Why do people have fingernails?

  Meredith — Belvidere, IL

• +4465

  Why do our bodily functions slow down when we sleep

  Jason — Richmond, IN

• +4454

  Is planet earth living or nonliving?

  Eliza — Melbourne

• +4405

  why do possoms hang upside down?

  riley — Jenks, OK

• +4391

  How do your bones grow?

  Jamie — Tauranga

• +4362

  How do people get the money from credit cards?

  Alyssa — Northbrook

• +4350

  Why is righty "tighty" and lefty "loosey" and not the other way around?

  Pam — Carpentersville

• +4258

  Can we actually multi-task?

  Jennifer — Northbrook, IL

• +4127

  why does the sun set earlier every night?

  Audrey — Wheeling, WV

• +4031

  How does a scale work?

  Sam — Greenfield, WI

• +4012

  How much of our brain do we use?

  Dylan — Black River, NY

• +3857

  how do our brains form pictures

  alyssa — wellington

• +3846

  Why is your fingerprint different

  Tom — Ngatea, AL

• +3840

  How many galaxies are there?

  Shelley — Auckland

• +3840

  What is blood made of?

  Alix — Lincoln

• +3838

  Where did our numbers 1-9 come from?

  Sarah — Leander, TX