3.1
The smallest unit of matter.
What is an atom?
A process in which an event acts as both an input and output of the same system.
What is a feedback loop?
This layer of Earth's geosphere is the outermost "skin".
What is the crust?
This is what we call the matter that all living things need to survive.
What are nutrients?
This is the chemical symbol for water.
What is H2O?
Anything that has mass and takes up space.
What is matter?
When a feedback loop stabilizes a system.
What is a negative feedback loop?
These are part of the lithosphere and move around very slowly, creating earthquakes, mountains, and volcanoes amongst other things.
What are tectonic plates?
This is the process used by producers to turn water, sunlight, and carbon dioxide into food.
What is photosynthesis?
This is the chemical symbol for carbon dioxide.
What is CO2?
This is the scale used to measure how acidic or basic a solution is.
What is pH?
The layer of Earth's spheres that contains all rock, soil and minerals on and below Earth's surface.
This plate boundary happens when plates move apart from magma being forced up between them, sometimes causing volcanoes.
What is divergent?
This is what we call organisms that can make their own food, like plants and algae.
What is producer?
Who is Rocky?
This is what a solution with a pH below 7 is considered.
What is acidic?
The layer of Earth's spheres that contains all the gases and air that we breathe and keep us warm.
What is the atmosphere?
This layer of the geosphere is the innermost and is completely solid, despite being the hottest layer.
What is the inner core?
This is how nitrogen is taken from the atmosphere and turned into usable nitrogen.
What is nitrogen-fixation?
This is the person who founded the city of Philadelphia in 1682.
Who is William Penn?
This is the property of water that makes it stick to itself very easily.
What is cohesion?
Erosion is this type of feedback loop.
What is positive feedback loop?
The part of the water cycle where water vapor turns back into a liquid.
What is condensation?
This is the other place on Earth phosphorus is mostly found, aside from water.
What is the lithosphere?
These are the names of Ms. Havu's dogs.
Who are Laika and Stubby?