The layer of the Earth where we live.
What is the crust?
Plants make their own food using sunlight in this process.
What is photosynthesis?
This state of matter has a fixed shape and size.
What is a solid?
This is the chemical formula for water.
What is H2O?
The four states of matter.
What are plasma, gas, liquid and solid?
The layer of Earth is made up of hot molten rock.
What is the mantle?
It is the smallest unit of life.
What is a cell?
The force that pulls objects toward the Earth.
What is gravity?
This element is needed by humans to breathe and is found in the air.
What is oxygen?
This invention helps us to see very small objects, like cells.
What is a microscope.
This is the name of molten rock that erupts from a volcano.
What is lava
The organ in your body that pumps blood.
What is the heart?
This state of matter that has no fixed shape or size.
Wht is a gas?
The small building block of matter is called these.
What are atoms?
When water is heavier than oil.
What is density?
The Earth is broken into pieces called these.
What are tectonic plates?
Animals that eat only plants are called these.
What are herbivores?
The tool used to measure the temperature of an object.
What is a thermometer?
This is the pH of pure water.
What is 7?
The type of energy that comes from the sun.
What is solar energy?
The Earth's atmosphere is mostly made up of this gas.
What is nitrogen?
Animals that have a backbone are called this.
What are vertebrates?
The material that does not let electricity flow through it.
What is an insulator?
The type of change when a substance becomes a new material, like mixing vinegar and baking soda.
What is chemical change.
Happens when you mix glue and liquid starch.
What is slime?