Sustainable Ecosystems
What do plants produce during photosynthesis?
Oxygen
What is the center of an atom called?
The nucleus.
What is the name of our galaxy?
The Milky Way.
What type of electricity flows through wires?
Current electricity.
Sustainable Ecosystems: A forest is losing biodiversity due to deforestation. What steps would you take to restore it?
Replant native trees, protect wildlife habitats, and reduce human activity in the area.
What is a predator?
An animal that hunts and eats other animals.
What element has the symbol “O”?
Oxygen
What is the closest planet to the Sun
Mercury
what material is a good conductor of electricity?
Metal or copper
The Universe: Build a spacecraft to explore another planet. What energy source would you use?
Solar energy for reliability and nuclear power for long-distance travel.
What is the word for all living and nonliving things in an area?
Ecosystem.
Is water (H₂O) an element or a compound?
A Compound
What force keeps us on the ground?
Gravity
what device is used to store electrical energy?
A battery
Electricity: Create a city powered by renewable energy. What should you focus on?
Use solar and wind power for their sustainability and availability.
What gas do humans breathe out that plants use?
Carbon dioxide (CO₂)
How many protons does hydrogen have?
One
What do we call a giant explosion that creates a star?
A supernova
What is the main source of electricity in solar panels?
The Sun.
Atoms, Elements, and Compounds: You need to purify dirty water. What elements or compounds would you use?
Use activated carbon to remove impurities and chlorine or ozone to kill bacteria.
What is one way to reduce plastic pollution?
Recycle or use reusable products.
What charge does an electron have?
Negative.
What is the Sun mostly made of?
Hydrogen and helium.
Does rubber conduct electricity?
No, it is an insulator.
Electricity: Your school wants to reduce electricity costs using renewable energy. What would you recommend?
Install solar panels on the roof to harness sunlight and save energy.