ENGLISH
MATH
SCIENCE
HISTORY
ART
100

In many time-travel stories, this is the word for a person who journeys to the past or future.

time traveler

100

This is the answer you get when you add numbers together.

Sum

100

This is the star at the center of our solar system that gives Earth light and heat.

Sun

100

This man was the first President of the United States.

George Washington

100

These are the three colors that cannot be made by mixing other colors: red, blue, and yellow

primary colors

200

This punctuation mark is used when a character in a time-travel story asks a question like “What year is it?”

What is a question mark?

200

This shape with three sides could be drawn by a time traveler to mark a triangular time portal.

triangle

200

Plants use this process to make food from sunlight — something that stays the same no matter what year a time traveler visits.

photosynthesis

200

A time traveler to 1776 might see the signing of this important paper that declared the colonies free.

Declaration of Independence

200

This word describes how light or dark a color is in a painting of a futuristic time machine.

value

300

This is the person who writes a time-travel book or story. 



author
300

When you multiply the number of years a time traveler jumps by 2, the answer is called this. 

product

300


This invisible force pulls everything toward Earth and would still work on a time traveler in any year.


gravity

300

A time traveler to 1620 might meet these people who sailed on the Mayflower. 


Pilgrims

300

This artist painted swirling skies and sunflowers and might inspire a time-travel painting with wild colors.

Vincent van Gogh

400

This type of word describes a noun, like calling a time machine “shiny” or “ancient.”

adjective

400

This shows a part of a whole, like saying a time traveler spent 3/4 of the day in the past.

fraction

400

These remains of ancient plants and animals help scientists (and time travelers) learn about life long ago.

fossils

400

A time traveler helping people escape slavery in the 1800s might meet this brave conductor of the Underground Railroad.

Harriet Tubman

400

This is the way an artist arranges lines, shapes, and colors in a picture of a time portal.

composition

500

In a time-travel story, this is the main person or character the adventure follows.

main character/protagonist

500

This is the total distance around the outside of a time machine shaped like a rectangle or circle.

perimeter

500

This layer of gases around Earth protects living things and would surround a time traveler in any era.

atmosphere

500

A time traveler to the 1860s would find the United States fighting this war between North and South.

civil war

500

This Italian artist painted the Mona Lisa and sketched flying machines that look like early ideas for time-travel inventions.

 Leonardo da Vinci

M
e
n
u