Sustainable ecosystems
This process uses sunlight to make food in plants.
What is photosynthesis?
The smallest part of an element that keeps its properties.
What is an atom?
The star at the center of our solar system.
What is the Sun?
This item stores electrical energy and powers things like phones.
What is a battery?
This clean energy source uses sunlight.
What is solar power?
A food web is more complex than this simpler food model.
What is a food chain?
This particle in the nucleus has no electric charge.
This particle in the nucleus has no electric charge.
These objects orbit stars and can have moons.
What are planets?
The unit used to measure electric current.
What is an ampere?
This compound, also called table salt, is used in food.
What is sodium chloride (NaCl)?
This kind of species is key to ecosystem health and its loss affects many others.
What is a keystone species?
Salt (NaCl) is made when this type of bond forms between sodium and chlorine.
What is an ionic bond?
The galaxy we live in.
What is the Milky Way?
This device automatically shuts off power if a circuit is overloaded.
What is a circuit breaker?
This type of circuit lets electricity take more than one path.
What is a parallel circuit?
This gas is taken in by plants during photosynthesis and released by animals during respiration.
What is carbon dioxide?
This number tells how many protons are in an atom.
What is the atomic number?
The force that keeps planets in orbit.
What is gravity?
If a city wants to power all homes using only renewable electricity, what systems would you recommend and what problems would they face?
What is using solar, wind, or hydro systems, but needing energy storage, backup sources, and stable infrastructure?
This layer of gases protects Earth from harmful radiation.
What is the ozone layer?
How can human actions cause long term changes in an ecosystem, and what could be done to reduce the damage?
What are actions like deforestation and pollution, and solutions like reforestation, conservation, and reducing emissions?
If you were designing a safe, strong material for space travel, how would you choose which elements or compounds to use, and why?
What is selecting elements based on their strength, reactivity, and resistance to heat or radiation
How are heavier elements (like iron or gold) formed in the universe, and why does that matter to life on Earth?
What is through nuclear fusion in stars and supernova explosions, which spread those elements so planets and life can form?
The planet we live on.
What is Earth?
How do science and technology help us solve global problems like pollution or climate change?
What is by creating cleaner energy, better recycling, eco-friendly materials, and improving how we use and protect resources?