Ecology
Chemistry
Space
Electricity
Random
100

This term describes living parts of an ecosystem like plants and animals.

What are biotic factors?

100

This is anything that has mass and takes up space.

What is matter? 


100

This is Earth spinning on its axis.

What is rotation?

100

This type of electricity involves moving electrons.

What is current electricity?

100

This type of change forms a new substance.

What is a chemical change?

200

These organisms make their own food using sunlight.

What are producers?

200

These are the three main states of matter.

What are solid, liquid, and gas?

200

This movement of Earth causes the year.

What is revolution?

200

This type of circuit has only one path for current.

What is a series circuit?

200

This part of an atom has no charge.

What is a neutron?

300

This shows many interconnected food chains.

What is a food web?

300

This subatomic particle has a positive charge.

What is a proton?

300

These are caused by the Moon’s gravity pulling on Earth’s oceans.

What are tides?

300

This device opens and closes a circuit.

What is a switch?

300

This relationship keeps population sizes balanced between two species.

What is a predator-prey relationship?

400

This species is not native and harms the ecosystem it enters.

What is an invasive species?

400

This number on the periodic table determines an element’s identity.

What is the atomic number?

400

This happens when the Moon blocks the Sun.

What is a solar eclipse?

400

Copper is an example of this type of material that allows electrons to flow easily.  

What is a conductor?

400

This type of charging uses a neutral object to rearrange electrons without touching it.

What is charging by induction?

500

When a population overshoots this, resources become scarce and population size decreases.

What is carrying capacity?

500

This element has an atomic number of 12 and is found in the alkaline earth metals group.

What is magnesium (Mg)?

500

This Moon phase occurs when half of the Moon is illuminated and increasing.

What is first quarter?

500

This formula is used to calculate voltage, energy, or charge. 

V=E/Q

500

Using public transit instead of driving reduces this personal environmental impact.

What is an ecological footprint?