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100

The third planet from the Sun and is the only known place to support life. 

Earth.

100

Name an asteroid named after Filipino Students or Teachers.

11697 Estrella. 

12088 Macalintal. 

13241 Biyo.

100

Consists of all living things. (One of the Earth's subsystems)

Biosphere.

100

Where Hot Air Balloons can be seen. (Layer of the Atmosphere)

Troposphere.
100

Thrive on dead organisms. 

Ex. Beetle

Decomposers.

200

Name the 8 Planets, starting from the Sun.

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

200

Law that dictates that one thing is connected to everything.

Law of Interconnectedness.

200

10000km - 700km. You can see the Space Station in this layer. (Layer of the Atmosphere)

Exosphere.

200
It says that no energy is being destroyed, it is merely being transferred. 

Law of Conservation.

200

Elements that move through the atmosphere. (Type of Biogeochemical Cycle)

Gas Cycles.

300
Name the 4 Spheres of the Earth. 

Biosphere, Lithosphere (Geosphere), Hydrosphere, Atmosphere.

300

Covers 75% of Earth's surface. (One of the Earth's subsystems)

Hydrosphere.

300

80km, you can see the Aurora Borealis here. (Layer of the Atmosphere)

Thermosphere.

300

Essential elements of living matter are circulated. (Biological, Geological, Chemical)

Biogeochemical Cycle.

300

Elements move from land to water to sediment. (Type of Biogeochemical Cycle)

Sedimentary Cycle.

400
Various studies found in the surface of the Earth. Type of science.

Earth Science.

400

Made up of plates and it includes all the solid parts. (One of the Earth's subsystems)

Lithosphere or Geosphere.

400

50km, where Meteors can be seen. (Layer of the Atmosphere)

Mesosphere.

400

Makers of their own food through Photosynthesis. 

Ex. Plants

Producers or the Autotrophs. 

400

This cycle is about the nitrogen converting to other forms. 

Nitrogen Cycle.

500

A big explosion causing physical and chemical changes, creating the stars, planets, and the galaxies. Theory that created the Universe.

Big Bang Theory.

500

Blanket of gas that surrounds the Earth. (One of the Earth's subsystems)

Atmosphere.

500

12km, where Weather Balloons can be seen. (Layer of the Atmosphere)

Stratosphere.

500

Cannot make their own food, deals with Respiration. 

Ex. Cows

Consumers or the Heterotrophs. 

500

Name the 5 steps in the Nitrogen Cycle.

1. Nitrogen Fixation (deposit of nitrogen)

2. Nitrification (conversion of ammonia gas to nitrate and nitrites) 

3. Assimilation (producers use their roots to absorb nitrogen compounds)

4. Ammonification (production of ammonia)

5. Dentrification (denitrifying bacteria)