Earth's Changing Surface
The breaking down of rocks into smaller pieces over time.
What is weathering?
Earth spinning on its axis causes this.
What is day and night?
A ball rolling down a hill is an example of this type of energy.
What is kinetic energy?
Water, sunlight, and soil help this type of organism grow.
What is a plant?
Using your five senses to learn about the world.
What is observation?
This process moves rocks and soil from one place to another.
What is erosion?
This object appears to change shape in the sky about every 29 days.
What is the moon?
Stored energy in a stretched rubber band is this type of energy.
What is potential energy?
Animals need food, water, air, and this to survive.
What is shelter?
A smart guess about what might happen in an experiment.
What is a hypothesis?
A mountain, valley, or canyon is an example of this.
What is a landform?
The tilt of Earth’s axis and its orbit around the sun cause these changes.
What are the seasons?
Light does this when it bounces off a mirror.
What is reflect?
A polar bear’s thick fur is an example of this.
What is an adaptation?
A ruler or thermometer is an example of this.
What is a tool?
Planting trees and building walls are ways to stop this from happening.
What is erosion?
These grow shorter at noon and longer in the morning and evening.
What are shadows?
This kind of energy travels in waves and lets you hear music.
What is sound energy?
Removing trees from a forest can break this delicate connection among living things.
What is a food chain?
These are the things you change or measure in an experiment.
What are variables?
These two natural disasters can quickly change Earth’s surface.
What are earthquakes and volcanoes?
This movement causes constellations to appear to shift slowly across the night sky.
What is Earth's orbit?
This path must be complete to make a light bulb turn on.
What is a closed (or complete) circuit?
These preserved remains or imprints give clues about organisms from long ago.
What are fossils?
This is the variable in an experiment that you never change.
What is a control?