Types of Mammals
Types of Reptiles/Amphibians
Simple Machines
Inventors & words
History of Money
100
Animals that hunt, kill and eat other animals
Predators - A predator hunts its prey
100
Cold-blooded vertebrates that have skin covered with scales
Reptiles - Many reptiles live in the rainforest
100
A simple machine that makes work easier by multiplying the force put into it
Lever - A lever multiplies the force put into it 
100
To plan, build, or manage a building or construction project
Engineer - We need an engineer for this project 
100
A record of money received or paid out
Account - I have some money left in my account 
200
Animals that are hunted, killed and eaten by other animals
Prey - Prey are hunted by their predators
200
Having blood that stays at about the same temperature as the water or air around the living thing
Cold-blooded - Cold-blooded animals adapt to their environment
200
A round ring with spokes that turns a post attached to it, causing movement
Wheel and Axel - is used in many forms of transportation (cars, busses, trains, bikes) 
200
An original device
Invention - Their invention improved our lives 
200
The basic unit of money for a nation
Currency - We need to exchange currency at the airport 
300
Animals that eat only meat
Carnivores - A carnivore only eats meat
300
Cold-blooded vertebrates that have moist skin
Amphibian - Amphibians have moist skin
300
A threaded spiral pin or rod used as a simple machine to attach and/or build objects
Screw - This chair is missing a screw 
300
A person who helps create or develop new ideas, methods, etc.
Pioneer - John Glenn was a pioneer in space travel 
300
The amount of money in a bank account OR The amount of money that still needs to be paid
Balance - We need to pay off the balance on our credit cards 
400
Animals that eat only plants
Herbivores - Herbivores only eat plants
400
A big and noticeable change in how something looks, what it does, what it is made of, or how it is made. (Caterpillar to Butterfly)
Metamorphosis - Metamorphosis is when a caterpillar turns into a butterfly 
400
The pointed edge of an inclined plane that can be used to push things apart
Wedge - A wedge is the pointy part of the blade 
400
Inventor of the incandescent light bulb
Thomas Edison invented the light bulb, among many other things 
400
To trade goods and services for other goods and services
Barter - The barter system is still very useful in some countries 
500
Animals that eat both plants and meat
Omnivores - Omnivores eat both plants and meat
500
Animals that have spines
Vertebrates - Animals that have spines are called vertebrates
500
A simple machine with a wheel over which a rope, belt, chain, or cable runs to make it easier to lift heavy objects
Pulley - The window shades use pulleys 
500
Inventor of the radio transmitter
Nikola Tesla - Invented the radio transmitter, among many other things 
500
The money paid to a lender (bank), or money received from a borrower (account holder/You)
Interest - The interest on this bank loan is too high! 