1. Unit Four Social Studies Vocabulary By: Mrs. Marcuse’s Fourth Grade Class

2. Atlas By: Carter Asnien A atlas is a book that has a collection of all sorts of maps from all over the world.

3. Capital Goods Capital goods are money and supplies that you need to start a business. You need money to live. By: Joey Bubonics

4. Charles Kettering Charles Kettering invented the first electrical cash register. He makes electrical equipment for cars. Made the first electric automobile starter.

5. Dam Chris d Barrier that controls the flow of different water ways.

6. Election By Christian Orr Voting for a president that you want Voting for a president that you want A president last 4 years A president last 4 years 1 vote a person 1 vote a person A president lives in a big house called the white house. A president lives in a big house called the white house.

7. Encyclopedia A encyclopedia is something that you can look something or someone up. A encyclopedia is something that you can look something or someone up. By: Brianne O'Keefe. By: Brianne O'Keefe.

8. Fertilizer Fertilizer is something that helps plants or crops grow better. By Michaela Karlesses

9. Garret Morgan Inventor of the hood safety hood, an early type of gas mask, and the traffic signal. By isaiah.

10. Granville Woods Granville Woods was an inventor for the railroad industry. He was known as “The black Thomas Edison”

11. Herbicide by Chris T. A herbicide is a chemical used to kill unwanted plants. Some herbicides kill specific plants. Some leave the plants you want but kill the plants around them.

12. An interval is a evenly spaced mark on a time line it is marked by an easy-to-work with number. 1800 1810 1820 1830 1840 1850 1800 1810 1820 1830 1840 1850 interval intervalJordan

13. Income Income means that you earned money from business or a type of work. SALMMAN

14. Inventor’s A inventor is a person how invents stuff that helps the modern life like a light bulb made by Thomas Edison he was a inventor and Al-Javari made the computer.

15. LEADER! Leader is someone or something leading someone or something. Leader is someone or something leading someone or something. Someone in charge or boss Someone in charge or boss By: Haruna Heima

16. Market by: Tyler Mcrill Markets are a place were people shop to buy foods. There are a lot of markets around the world.

17. Opportunity Cost Opportunity cost is when you give something up for something else. Opportunity cost is when you give something up for something else. BY : Fiona Blumin BY : Fiona Blumin

18. Pesticide By: Alex Skalla Do you know what pesticide is or what it is used for? Do you know what pesticide is or what it is used for? Pesticide is used for killing insects, weeds, and any other pests. Pesticide is used for killing insects, weeds, and any other pests. Pesticide usually comes in a bottle like the one shown below. Pesticide usually comes in a bottle like the one shown below.

19. Specialize To do one job or make one part of a product To do one job or make one part of a product By Gina Gersey By Gina Gersey

20. TRADE To trade something for thing else. Like to switch BY EVANGELINE GRAY

21. Wetlands By Zachary Stanik Wetlands are their name, wet lands. Wetlands are places like swamps, marshes, and bogs. Swamps are wetlands that are wet, and thick with growth regions. Bogs are spongy parts of land that are usually acid and are near ponds and lakes. Finally, we have marshes that are wetlands that are spongy just like bogs but not acid.

22. The Wright Brothers  The Wright Brothers (Wilbur and Orville) had owned a bike shop in North Carolina that is where they Wilbur and Orville had invented the first airplane. Katherine Wright had given money to support her brothers. Airplanes like jets that can go 300 miles per hour came from their invention.  By: Nicky Chiodo

23. Thomas Edison By: Abbey Duris Thomas Edison was born in February 11 1847 and died in October 18 1931he lived in Milan Ohio. He was a great inventor because he helped with the light bulb. Before that he was a businessman and was homeschooled as a child.

24. Volunteer A volunteer is a person who takes time to do a service by choice By: Madeline Lauber