EARTH
What layer of Earth do we live on?
The crust
What is the function of the cell membrane?
It controls what enters and exits the cell.
What is the Sun?
A star at the center of our solar system.
What is matter?
Anything that has mass and takes up space.
What is the chemical symbol for water?
H2O
What causes earthquakes?
Movement of tectonic plates.
What organelle is known as the powerhouse of the cell?
The mitochondria.
What planet is known as the Red Planet?
Mars.
What is an atom?
The smallest unit of matter.
What is the process called when plants make their own food using sunlight?
Photosynthesis
What is the water cycle?
The continuous movement of water through evaporation, condensation, precipitation, and collection.
What is heredity?
The passing of traits from parents to offspring.
What causes day and night?
Earth's rotation on its axis.
What is the difference between a solid, liquid, and gas?
Solids have a fixed shape, liquids flow and take the shape of their container, gases spread out to fill the space available.
What is the largest organ in the human body?
Skin
What is erosion?
The process by which natural forces move weathered rock and soil.
What is an ecosystem?
A community of living organisms and their environment.
What is a constellation?
A group of stars forming a recognizable pattern.
What is energy?
The ability to do work or cause change.
What force pulls objects toward the center of the Earth?
Gravity
What are fossils?
Remains or impressions of ancient organisms preserved in rock.
What is a producer in a food chain?
An organism that makes its own food, usually through photosynthesis.
What is gravity?
The force that attracts objects toward each other.
What is friction?
A force that resists motion between two surfaces.
What are the three states of matter?
Solid, liquid, and gas