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1. bailey wants to find out which frozen solid melts the fastest: soda, ice, or orange juice. she
pours each of the three liquids into the empty cubes of an ice tray, and then places the ice tray in the
freezer over night. the next day, she pulls the ice tray out and sets each cube on its own plate. she
then waits and watches for them to melt. when the last part of the frozen liquid melts, she records
the time.
independent variable: soda, ice, or orange juice
dependent variable: how fast it melts
controlled variable: how long she waits, how much of each is used

How does land development destroy ecosystems? it increases human carrying capacity too rapidly. it converts them into residential or agricultural areas. it forces humans to import non-native plants and animals. it expands the natural range of native wildlife species.

For a to be healthy, it has to have lots of different kinds of plants and animals. all of the different types of plants and animals in an ecosystem. name four types of ecosystems from those listed in the video. b) c) d) most living things live here. all living things depend on how an ecosystem like a game of sticks? why should we build new buildings on existing land? name four extinct species from those listed in the video. b) c) d) the best way to wipe out a species is to the largest ecosystem in the world is this percent of the world is covered by water. how many of all species in the world live in the ocean? list five things you can do to increase biodiversity. b) c) d) e) how many species are we losing per hour?

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays