Don't Forget About 4th Grade
This is the breaking down of rocks into smaller pieces by water, wind, or ice
What is weathering?
This is the name for animals, such as fish, amphibians, reptiles, birds, and mammals, that have a backbone.
What is a vertebrate?
This rigid structure surrounds the cell membrane of a plant cell, giving it a stiff, boxy shape.
What is the cell wall?
He was elected President in 1932 and promised a "New Deal" for Americans.
Who was Franklin D. Roosevelt (FDR)?
This inventor is famous for finding hundreds of uses for peanuts and sweet potatoes.
Who is George Washington Carver?
A material that allows electricity to flow through it easily, such as copper or metal.
While vertebrates have a backbone, this larger group of animals makes up 97% of the animal kingdom and lacks a backbone.
What is an invertebrate?
True or False: Both animal and plant cells have a nucleus, cytoplasm, and cell membrane.
What is True?
These were shanty towns built by homeless people out of scrap materials.
What are Hoovervilles?
A combination of two or more substances that can be separated.
What is a mixture?
When wind or water moves soil and rock from one place to another.
What is erosion?
This class of vertebrates is characterized by having scaly skin, breathing with lungs, and laying eggs on land.
What are reptiles?
These two structures are found in plant cells to provide support and food, but are missing from animal cells.
What are the cell wall and chloroplasts?
This severe drought and dust storm disaster hit the Midwest in the 1930s.
What is the Dust Bowl?
Physical or Chemical change? Digesting your breakfast.
What is a chemical change?
The process by which plants use sunlight, water, and carbon dioxide to create their own food.
What is photosynthesis?
These are vascular plants that reproduce using seeds but do not produce flowers or fruits, such as pine trees.
What are gymnosperms?
This thin, flexible outer layer surrounds all cells and acts as a "gatekeeper," controlling what enters and leaves.
What is the cell membrane?
He was the president when the Great Depression began and was blamed for not doing enough.
Who was Herbert Hoover?
This code name was given to the Allied invasion of Normandy, France, on June 6, 1944.
What is D-Day?
The imaginary line Earth spins on, causing day and night.
What is axis?
Scientists classify plants into two main groups based on how they reproduce: those that produce seeds and those that produce these tiny cells, such as ferns and mosses.
What are spores?
A scientist plans to make models of three kinds of cells: oak leaf, squirrel muscle, and fern leaf.
Which model(s) will have organelles that contain chlorophyll?
A) only the fern leaf cell
B) only the squirrel muscle cell
C) the fern leaf cell and the oak leaf cell
D) the oak leaf cell, the squirrel muscle cell, and the fern leaf cell
What is the fern leaf cell and the oak leaf cell?
The Great Depression lasted until this major world event began.
What is World War II?
What are 3 possible indicators that a chemical change has taken place?
Answers will vary: What is Formation of a gas, color change, formation of precipitate (a new solid substance is formed), sudden change in temperature, an odor is developed?