Earthquake Timeline LInks
http://www.sciencekids.co.nz/sciencefacts/topten/largestearthquakes.html
https://earthquake.usgs.gov/learn/kids/
http://www.american-historama.org/1881-1913-maturation-era/san-francisco-earthquake.htm
http://www.ducksters.com/science/earthquakes.php
http://kidsgeo.com/geology-for-kids/0044B-earthquakes.php
http://www.earthquakefacts.net/Earthquake-History.html
Volcano Timeline Links
http://www.ngkids.co.uk/science-and-nature/Volcano-Facts
http://kids.nationalgeographic.com/explore/science/volcano/#volcano-explode.jpg
http://www.weatherwizkids.com/weather-volcano.htm
http://www.primaryhomeworkhelp.co.uk/mountains/maunaloa.html
Ecosystem Links
Polar/Tundra
http://www.ducksters.com/science/ecosystems/tundra_biome.php
http://kids.nceas.ucsb.edu/biomes/tundra.html
http://www.dkfindout.com/us/animals-and-nature/habitats-and-ecosystems/tundra/
Desert
http://kids.nceas.ucsb.edu/biomes/desert.html
http://www.ducksters.com/science/ecosystems/desert_biome.php
http://www.kidcyber.com.au/deserts/
Grasslands
http://kids.nceas.ucsb.edu/biomes/grassland.html
http://www.ducksters.com/science/ecosystems/grasslands_biome.php
http://www.kidcyber.com.au/grasslands/
Rainforest
http://kids.nceas.ucsb.edu/biomes/rainforest.html
http://www.ducksters.com/science/ecosystems/rainforest_biome.php
http://www.ngkids.co.uk/science-and-nature/15-cool-things-about-rainforests
Aquatic
http://kids.nceas.ucsb.edu/biomes/index.html#aquatic
https://www.ducksters.com/science/ecosystems/marine_biome.php
https://www.ducksters.com/science/ecosystems/freshwater_biome.php
https://www.ducksters.com/science/ecosystems/coral_reef_biome.php
Popsicle Stick Chain Reaction
https://www.stevespanglerscience.com/lab/experiments/popsicle-stick-chain-reaction/