Ecosystems
These organisms make their own food using sunlight and are the base of the food chain.
What are producers?
These are the three most common states of matter found on Earth
What are solid, liquid, and gas?
Pushes and pulls are examples of this.
What is force?
This is the third planet from the Sun.
What is Earth?
A prediction or educated guess that can be tested is called this.
What is a hypothesis?
Organisms that break down dead plants and animals, returning nutrients to the soil, are called this.
What are decomposers?
This is the smallest unit of an element that still has the properties of that element.
What is an atom?
When forces on an object are equal and opposite, the object is in this state.
What is balanced?
Earth is located in this galaxy, which contains billions of stars.
What is the Milky Way?
Information gathered using the five senses during an investigation is called this.
In an energy pyramid, the amount of energy available to organisms decreases by about this much at each level.
What is 90% (or only 10% passed on)?
Melting ice is this type of change, because it doesn’t alter the substance’s identity.
What is a physical change?
This force opposes motion between two surfaces that are in contact.
What is friction?
Earth’s rotation on its axis causes this.
What is day and night?
In a well-designed experiment, this is the one factor that is changed on purpose.
What is an independent variable?
Food, water, shelter, and space are examples of these, which restrict population growth
What are limiting factors?
This property of matter is calculated by dividing mass by volume.
What is density?
This property of matter resists changes in motion and is described in Newton’s First Law.
What is inertia?
Ocean tides on Earth are primarily caused by the gravitational pull of this object.
What is the moon?
Data that involves numbers and measurements is known as this kind of data.
What is quantitative data?
The specific level an organism occupies in a food chain or food web is called this.
What is trophic level?
A chemical reaction that absorbs heat is called this.
What is an endothermic reaction?
This law states that for every action, there is an equal and opposite reaction.
What is Newton's Third Law of Motion?
These are the four gas giants.
What are Jupiter, Saturn, Uranus, and Neptune?
Unlike a theory, this describes what always happens under certain conditions but doesn't explain why.
What is a scientific law?