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Science
California Science
Grade 4
e-Glossary
H
List of Words for Letter 'H'
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hardness
a property of minerals that tells how well it resists scratching
herbivore
an animal that eats only plants
horizon
a layer of soil that is distinct from the layers above and below it
hot spot
a place where magma has partially melted through Earth's crust
humus
decayed plant or animal material in soil
hybrid
having two or more different things mixed together
hypothesis
a suggested statement or explanation that can be tested to answer a question