The Cell
What is the powerhouse of the cell?
What is Mitochondrion?
What is the main difference between weathering and erosion?
Weathering is the process of breaking rock down into smaller pieces (sediment), while erosion is the process of moving that sediment to a new location.
About what percentage of all animal species are
invertebrates?
What is 90%?
What are the four essential parts needed to create a simple, working electric circuit?
What is a battery, wire, and a lightbulb?
In which type of change is a completely new substance formed?
What is a chemical change?
What is the brain of the cell that stores the DNA?
Is a volcano a constructive or destructive force?
What is both?
What are three key traits that define a
mammal?
They have hair or fur, give live birth, and feed their young milk.
What is the difference between an "open" and a "closed" circuit?
A closed circuit is a complete, unbroken path that allows electricity to flow. An open circuit has a break in the path (like an open switch), which stops the flow of electricity.
If you tear a piece of paper into tiny bits, is it a physical or chemical change?
What is a physical change?
Which organelle is found in plant cells but not animal cells and is responsible for photosynthesis?
What is Chloroplast?
How is a river delta formed?
It is formed by deposition at the mouth of a river
How is the skin of a
reptile
different from that of an amphibian?
Reptiles
have dry, scaly skin, while
amphibians
have moist, smooth skin.
If you are building a circuit and the light bulb doesn't turn on even though the wires are connected, what could be the problem?
The circuit may be open or something is wrong with the wire or bulb.
Question: When you bake a cake, the liquid batter turns into a solid sponge. Is this physical or chemical?
What is a chemical change?
Which structure protects a plant cell and gives it a rigid, boxlike shape?
What is the cell wall?
Which force is primarily responsible for carving out a canyon?
What does it mean for a reptile or fish to be cold blooded?
Their body temperature changes based on the temperature of their surroundings.
Why are electrical wires usually covered in plastic or rubber?
Plastic and rubber are insulators, which do not allow electricity to flow through them easily. This protects people from getting an electric shock.
Scenario:
You drop an Alka-Seltzer tablet into water and it starts to fizz and bubble. What does this gas production tell you?
That a chemical change has happened
What is the gel-like fluid in which many different organelles are found?
What is cytoplasm?
How does a levee help protect land from surface changes?
It is a wall built along a river to prevent flooding
What is the primary physical feature that separates vertebrates from invertebrates?
What is a backbone?
What is the difference between static electricity and current electricity?
Static electricity is a buildup of charges that stay in one place (like a shock from a rug), while current electricity is the steady flow of charges through a conductor.
A metal bike left out in the rain starts to turn orange and crusty. What is this process called, and what kind of change is it?
What is a chemical change?