Nature of Science
Physical Science
Life Science
Earth and Space Science
Challenge!
100

An educated prediction about a natural process.

What is a hypothesis?

100

The heat transfer that occurs when a black cat sleeps in a sunbeam.

What is absorption?

100

This symbiotic relationship occurs when spanish moss grows on mangrove trees, neither helping nor hurting the trees but benefiting from a place to grow

What is commensalism?

100

An explosion of light and matter from the photosphere (surface) of the sun.

What is a solar flare?

100

The physical property which shows how easily a material can transfer heat or electricity.

What is conductivity?

200

A good scientific experiment should be performed by multiple scientists giving the same result, or this.

What is replicated?

200

If two forces are applied to an object and the object does not move, the forces must be this. 

What is balanced?

Or what is equal and opposite?

200

Carbon is removed from the atmosphere and stored in plants by this process. 

What is photosynthesis?

200

This happens when the moon blocks light from the sun, preventing it from reaching Earth. 

What is a solar eclipse?

200

A star with a low luminosity that is relatively close to Earth, like the sun, will have this apparent magnitude.

What is a high apparent magnitude?

300

Scientific theories may change over time based on this.

What is new evidence?

300

The way that light reaches earth when traveling across the vacuum of space. 

What is radiation?

300

Sugar is broken down to produce energy by this organelle found in both plant and animal cells. 

What is the mitochondria?

300

The process responsible for wind, ocean currents, and the movement of tectonic plates. 

What is convection?

300

The two things which make up the outermost layer of Earth.

What are the oceanic crust and the continental crust?

400

Two objects are attracted to each other because of their mass in an amount that decreases with distance, a force we call gravity.

This statement is an example of this scientific term.

What is a law?

400

The four energy types involved when fossil fuels in a powerplant are burned to produce electricity to power a light bulb.

What is Chemical energy --> thermal energy --> electrical energy --> radiant energy?

400

White flowers is a recessive trait in pea plants. This is the percentage of pea plant offspring expected to have white flowers if the parent generation was heterozygous for purple flowers. 

What is 25%?

400

The number of parent and daughter isotopes in an igneous rock sample can help determine this. 

What is its age through radioactive dating? 

400

A species with some mutations in DNA that led to traits for sharp teeth that helped them get more food in a desert environment might experience this. 

What is evolution by natural selection?

500

This is the variable plotted on the Y-axis of a graph.

What is a dependent variable?

500

If a 5.0 gram rock displaces 0.50 cm3 of water, this is its density.

What is 10 g/cm3?

500

This kind of cell often has a cell wall but never has a nucleus, and has evolved over time in response to antibiotics. 

What is bacteria?

500

This process is involved in the formation of sinkholes as broken limestone is carried away by groundwater. 

What is erosion?

500

Dr. Smith and Dr. Sour perform experiments where they heat up bacteria to kill them, transfer DNA to them, and then observe if the bacteria can make people sick. This should be their control group.

What is bacteria that they don't transfer DNA to?