This covers most of the Earth and makes it look blue from space.
What are oceans?
This type of organism breaks down dead plants and animals.
What is a decomposer?
This force pulls objects towards Earth.
What is gravity?
An educated guess that can be tested is called this.
What is a hypothesis?
This type of rock forms from cooled magma.
What is igneous rock?
This causes day and night on Earth.
What is Earth's rotation?
This plant part receives pollen during pollination.
What is the stigma?
When a ball hits a wall and bounces back, this property is demonstrated.
What is reflection (or change in direction due to force)?
A conclusion based on observations is called this.
What is an inference?
This type of rock forms from heat and pressure.
What is metamorphic rock?
These moving sections of Earth's crust can cause earthquakes when they slide past each other.
What are tectonic plates?
This cell structure allows plants to make their own food.
What is a chloroplast?
Light waves can do this even in empty space, unlike sound waves.
What is travel through a vacuum?
In an experiment, this is what stays the same.
What is a constant?
This type of rock forms from compacted sediments.
What is sedimentary rock?
This ocean zone is shallow and where fishermen often place traps.
What is the continental shelf?
This plant structure develops into fruit.
What is the flower?
Rubbing a comb on wool creates this type of electricity.
What is static electricity?
This tool is used to measure mass in grams.
What is a balance?
A substance made of only one type of atom is called this.
What is an element?
This process forms mountains when plates collide.
What is plate convergence?
These are living things that make their own food using sunlight.
What are producers?
This type of energy is stored in moving objects.
What is kinetic energy?
What is making a prediction?
A substance made of two or more elements chemically combined is called this.
What is a compound?