conversions
Astromy
Natural Resources
Threats to the ocean
Moon Phases
100

Convert 5.2 kilometers to meters.

5,200 meters

100

What is the correct order of cosmic structures from smallest to largest? Starting from planet

Star → Solar System → Galaxy → Universe

100

What are the two main types of natural resources, and how are they different?

Renewable resources, Nonrenewable resources

100

How does plastic pollution impact marine life?

Plastic pollution harms marine life by entangling animals, being mistaken for food

100

What is the difference between a solar eclipse and a lunar eclipse?

A solar eclipse occurs when the Moon passes between the Earth and the Sun, blocking sunlight from reaching Earth.

lunar eclipse happens when the Earth passes between the Sun and the Moon, causing Earth’s shadow to cover the Moon.

200

Convert 250 grams to kilograms.

0.25 kilograms

200

Which type of electromagnetic wave has the highest energy and shortest wavelength?

Gamma rays

200

Why are fossil fuels considered nonrenewable resources?

Their formation takes millions of years, while humans consume them far faster.

200

What is ocean acidification, and what causes it?

Ocean acidification occurs when excess carbon dioxide (CO₂) dissolved the hydrogen lowering ph.

200

Where are the hottest and brightest stars located on an HR Diagram?

At the top left corner, where blue giant stars are found.

300

Convert 3.75 liters to milliliters.

 3,750 milliliters

300

What determines how a star will evolve and what it will become at the end of its life cycle?

The star’s initial mass

300

Give three examples of renewable resources

Solar energy, Wind energy,Water (hydropower).

300

How does overfishing affect ocean ecosystems?

Overfishing disrupts food chains, depletes fish populations, and threatens the balance of marine ecosystems.

300

What Moon phase occurs when the entire side facing Earth is fully illuminated?

Full Moon

400

Convert 120 centimeters to meters.

Answer: 1.2 meters

400

What causes a meteor shower to occur?

Meteor showers happen when Earth passes through the debris left behind by a comet.

400

how does overuse of nonrenewable resources impact the environment?

Overuse can lead to environmental problems like air and water pollution habitat destruction and climate change due to excessive greenhouse gas emissions. 

400

Why is coral bleaching a major concern for marine biodiversity?

Coral bleaching occurs when corals expel the algae living in their tissues due to stress from rising ocean temperatures.

400

What causes the different phases of the Moon?

The changing angles at which we see the sunlit portion of the moon as it orbits the Earth.

500

Convert 0.85 kilograms to grams.

850 grams

500

List the planets in order from the Sun outward.

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

500

What are the steps of the water cycle

1. evaporation

2. transpiration

3. condensation

4.precipitation

5.collection

500

What are some ways humans can help reduce ocean pollution?

People can help by reducing plastic use, recycling properly, supporting sustainable seafood choices, reducing carbon emissions, and participating in beach cleanups.

500

What two main characteristics of stars are compared on an HR Diagram?

Temperature and Brightness.