Ecosystems
What is a producer?
A living thing that makes its own food (like plants)
What are the three states of matter?
Solid, liquid, gas
What causes day and night?
Earth’s rotation on it's axis
What is an inherited trait?
A trait you are born with
What tool is used to measure temperature?
thermometer
What do we call animals that eat only plants?
Herbivores
What property of matter describes how much space something takes up?
Volume
What causes seasons?
Earth’s tilt and orbit around the Sun
What is a learned behavior?
A behavior you learn through experience or practice
What is a hypothesis?
An educated guess
What is one example of a decomposer?
Mushrooms, fungi, bacteria
What property of matter describes how much matter is in an object?
Mass
Water from a lake evaporates into the air and forms clouds. Which two Earth spheres are interacting?
Hydrosphere and atmosphere
Is instinct (like a baby crying when hungry) inherited or learned?
Inherited
What is the independent variable?
What you change
What happens if a top predator is removed from a food chain?
The population of its prey increases
When a solid melts into a liquid, is it a physical or chemical change?
Physical change
What is erosion?
The movement of rock/soil by water, wind, or ice
Can learned behaviors be passed from parents to offspring?
No
Why do scientists repeat experiments?
To make sure results are reliable
What is the role of the sun in an ecosystem?
It is the main source of energy
A student mixes vinegar and baking soda in a cup and observes bubbling and gas forming. Why is this an example of a chemical change?
A new substance (gas) is formed, showing the matter has changed chemically
A plant is growing in soil, taking in water through its roots and carbon dioxide from the air. Which Earth systems (spheres) are interacting in this example?
Biosphere, hydrosphere, geosphere, and atmosphere
Two siblings both have brown hair, but one is much taller than the other. What explains the difference in their height?
Different combination of genes
A student is testing how sunlight affects plant growth. They use the same type of plant, soil, and water, but place one plant in sunlight and one in the dark. What is the independent variable in this experiment?
The amount of sunlight