to grow crops
What is how humans use soil?
they will become extinct
What is what could happen if hawksbill turtles are continued to be hunted?
the part of Earth where all living things are found
What is biosphere?
plant behavior where plants lean toward the Sun
What is phototropism?
the gravitational pull between Earth and what causes tides
What is the Moon?
the gas that plants need to make their own food through photosynthesis
What is carbon dioxide?
why it's important to clean, conserve, and protect water
What is water is a limited resource?
the Big Dipper is an example of this
What is a constellation?
a huge collection of stars
What is a galaxy?
the preservation or protection of natural resources
chemical found in plant cells that uses energy in sunlight to make food
What is chlorophyll?
most likely happen if lake water becomes polluted by humans
What is animals in the lake will die?
when the lit part of the Moon grows larger
What is waxing?
the phase immediately following a new Moon
What is a waxing crescent?
the larger planets farther from the Sun are made of this
What is gas?
chlorophyll captures energy from this to help with the process of photosynthesis
rain, sleet, snow, and hail are examples of this
What is precipitation?
the tilt of Earth's what affects the length of the day
What is axis?
summer in the Southern Hemisphere means what season in the Northern Hemisphere
What is winter?
the tendency of an object to keep moving in a straight line
What is inertia?
plant cell structures called chloroplasts carry out this
What is photosynthesis?
helps make polluted water drinkable
What is filtration?
days and nights would be about equal in length
What is what would happen if Earth was not tilted toward or away from the Sun?
the time it takes the Moon to revolve around Earth
What is 29 days?
there is a large asteroid belt between these two planets
What are Mars and Jupiter?