Science G4 Semester I - Summary 2016

Chapter 1 - Science
1.    Science is the study of the wonders of the universe.
2.    Scientist is a person who spends time trying to learn about things God has made.
3.    Observation is looking carefully at something.
4.    Stientist who study insects and similar creatures called entomologists.
5.    Briefly list the four ways how scientists learn.
1 They look carefully. They observe.
2 They gather information and try to think clearly.
3 They try to make sensible guesses, or hypotheses
4 They tyest their hypotheses with experiments to see whether they are correct
Chapter 2 - Insects
6.    For an insect, it must have three speciall characteristics: Three body parts, exoskeleton, and six legs.
7.    The hard coat of armor that protects the tiny body parts of insects is called an exoskeleton.
8.    All insects do not have lungs, they breath with breathing tubes. The oxygen enter the tubes through tiny holes called spiracles.
9.    Every insects have three main body parts. Caterpillar does not have it, we called it insect because caterpillar is a baby insect.
10.    Scientists call a caterpillar as larva.
11.    Most insects have a pair of commpund eyes, large eyes which are made up of many small eyes.
12.    Crickets are most active after dark; that is, they are nocturnal.
13.    Crickets, like like all other insects, are coldblooded.
14.    A predator is an animal that captures and feeds upon other animals.
15.    A disguise that causes people or animals to blend in with their surrounding is called camouflage.
16.    All insects have ways of communicating with other insects. They communicate with sight, smell, touch, dancing, and sound.
17.    An insect’s exoskeleton is lighter and stronger than bone.
18.    When insects outgrows its exoskeleton, it grows a new exoskeleton under the old one and the crawls out of the old skeleton. This process is called molting.
19.    Coldblooded means that an insect’s body temperature changes as the outside temperature changes.
Chapter 3 - Plants
20.    Parasite is an animal or plant that attaches it self to another animal or plants and feeds on it.
21.    When a green plant makes its food by photosynthesis, it takes carbon dioxide  from the air and puts oxygen back in to the air.
22.    Many trees grow a new layer of wood each year. That layers are called annual ring.
23.    Most needleleaf trees that live in regions that have changing season are evergreen.
24.    Every seed contains a new, living plant.
25.    As the insect travels from flower to flower, it moves pollen from the stamens to the pistils. Scientist call this process pollination.
26.    The stem of the tree is its tree trunk.
27.    Every seeds has three main parts the embryo, the stored food, and seed coat
28.    The insects travel from flower to flower. Scientist call this insects that help flower is pollinator.


Chapter 4 - Birds
29.    Blue jay probably the most intelligent of the birds.
30.    Swimming birds, such as ducks and geese, always have their paddles called webbed feet.
31.    Habitat is a type of area where an animal lives (forest, river, desert)
32.    Birds also do the regular seasonal movement, they are migration. Migrate mean to move from one place to another with the change of seasons
Chapter 5 - Matter
33.    Three fourths of the earth’s surface is covered with water.
34.    Clouds made of water and air.
35.    Potential energy is stored energy
36.    Matter is anything that takes up space and has weight.
37.    The particles which make up molecules are called atoms.
38.    When two of hydrogen molecule and one of oxygen molecule join together; they make a water molecule.
39.    Matter can exist in three states or forms. Name it and give an example for every forms!
a.    Solid (ice, rock, table, chair, ball)
b.    Liquid (water, oil, sea)
c.    Gas (water vapor, CO2, O2, Nitrogen)
40.    The visible blanket of air which completely surrounds us. Air is mixture of colorless, odorless, tasteless gases. We can not see, smell, or pick up a piece of air; but air is there. We can feel when it moves, and we can hear some of the effects of moving air.