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4th Grade Science
4th Grade Science Ch. 1 & 2
| Term | Definition |
|---|---|
| science | the study of the wonders of the universe |
| scientist | a person who spends time trying to learn about things God has made |
| observation | looking carefully at something |
| field guides | helpful for finding the answer to "What is it?" questions |
| range map | a map that shows the range of an animal, or the part of the continent where it can usually be found |
| migrates | to move from one place to another with the change of seasons |
| exoskeleton | an outside skeleton |
| molting | the shedding of outer skin, scales, feather, horns, or hair |
| the three body parts of an insect | head, thorax, abdomen |
| thorax | the middle body part of an insect |
| abdomen | the last body part of an insect; it contains the insect's heart and stomach |
| ovipositor | the egg-laying part of some female insects |
| spiracles | a tiny opening through which air enters the breathing tubes of insects |
| complete metamorphosis | egg, larva, pupa, adult |
| caterpillars | |
| grubs | |
| maggots | |
| cocoon | a silk case covering a moth larva |
| chrysalis | a hard case covering a butterfly larva |
| Francesco Redi | |
| hypothesis | a reasonable explanation of something based on observations of that thing |
| experiment | a planned way to test a hypothesis |
| law of biogenesis | life can only come from another life |
| antennae | a large feeler or sense organ on the head of insects |
| sensilla | tiny sense organs |
| compound eyes | a large eye made up of many smaller eyes which allows insects to see in almost every direction at one time |
| simple eyes | an insect eye with only one lens that is designed to sense light and movement |
| chewing mouth | |
| sucking mouth | |
| piercing-sucking mouth | |
| chewing-lapping mouth | |
| insects that migrate | ladybug, locust |
| nocturnal | active at night |
| cold-blooded | |
| nymph | |
| predator | |
| valiant | |
| camouflage | |
| mimicry | |
| ways insects communicate | sight, smell, touch, dancing, and sound |
| instinct | |
| parasite | |
| host | |
| insecticide | |
| hibernate | |
| social insects | |
| Jean Henri Fabre | |
| entomologist |
Created by:
vwalker5
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