science

Question 1

What causes day and night

Answer 1

The rotation of the Earth on its Axis 50% of the Earth faces the sun (daytime) 50% of the Earth is in darkness

Question 2

rotation

Answer 2

Is the Earth spinning on its axis
1 Rotation=24 hours

Question 3

Revolution

Answer 3

is the Earth spinning around the sun
1 revolution= 365.25

Question 4

leap year

Answer 4

Each revolution is 365.25 and after 4 years it adds 1 extra day

Question 5

Why is California three hours behind

Answer 5

because the earth rotates to the left Georgia gets light before California

Question 6

why do we see different constellations

Answer 6

As the earth revolves we see different parts of the night sky because we are in different positions of orbit

Question 7

Why does the moon appear to change shape

Answer 7

the moon reflects the sunlight and as it orbits around the Earth it causes different amounts of the lit surface to be seen from the Earth

Question 8

why do solar and lunar eclipses not happen every month

Answer 8

because the orbit of the moon is tilted 5 degrees from Earth’s orbital plane it does not always line up perfectly

Question 9

What is the significance of Polaris?

Answer 9

it is the Earth’s north star and points to the Earth’s north axis

Question 10

What is the relationship between Polaris and the lines of latitude on Earth?

Answer 10

The angle at which you view Polaris matches the latitude lines in the northern hemisphere

Question 11

What is the latitude of Atlanta?

Answer 11

33N

Question 12

How is the path of the sun different in the summer and the winter

Answer 12

the sun rises in the East and sets in the west the sun is at its highest at solar noon

Question 13

what is the degree of the earth’s tilt

Answer 13

23.5

Question 14

why do seasons occur

Question 15

name 2 reasons why winter is cold

Answer 15

the sun’s path is shorter giving Earth less time to warm up and more time to cool also during the winter the light is more spread out

Question 16

what month is the Earth closest and furthest from the sun

Answer 16

closest= July
furthest=janurary

Question 17

why are the poles always colder

Answer 17

The poles are always colder because the sun’s ray are less direct at the poles because of the curve of the earth’s surface so the light is always more spread out

Question 18

where is the sun directly over at the June solstice

Answer 18

tropic of cancer

Question 19

where is the sun directly over at the December solstice

Answer 19

tropic of Capricorn

Question 20

how old id earth

Answer 20

it is about 4.6 billion years old and you can tell this by mentors and fossils

Question 21

where is the sun directly over during an equinox?

Answer 21

equator

Question 22

Pangea

Answer 22

continents appear to match up
fossil correlation
rocks and mountains correlation
paleoclimate data

Question 23

glaciers scraping rocks against the earth’s surface

Answer 23

physical

Question 24

waves dropping sand ashore forming sandbars

Answer 24

deposition

Question 25

water. entering cracks of rocks than freezing

Answer 25

physical

Question 26

rainwater carrying away water from a hill

Answer 26

erosion

Question 27

deltas developing at the mouths of rivers

Answer 27

deposition

Question 28

gravity causing a landslide to take everything in its path

Answer 28

erosion

Question 29

wind blowing sand from one place to another

Answer 29

erosion

Question 30

sand dunes forming in deserts

Answer 30

deposition

Question 31

layers of sediment forming at the bottom of the ocean

Answer 31

deposition

Question 32

rain washing away sand from a sand dune

Answer 32

erosion

Question 33

wind blasting sand at rock and carving out arches

Answer 33

physical

Question 34

acid rain dissolving underground limestone

Answer 34

chemical

Question 35

how can rocks become igneous rocks

Answer 35

melting and cooling

Question 36

how can rocks become sedentary

Answer 36

breaking down compacted and cemented

Question 37

how do rocks become metamorphic

Answer 37

goes under intense heat and pressure

Question 38

which type of rocks do scientists study

Answer 38

sedimentary rocks because they contain fossils and relative and absolute dating determine their age

Question 39

looking at rock layers and the way each layer compares to the layers above and below

Answer 39

relative dating

Question 39

why do earth plates move

Answer 39

uneven heating of the earth’s interior cause convection currents that move tectonic plates in the direction of the current

Question 40

how do scientists piece together the great events of Earth’s history

Answer 40

fossils and rocks found from Weagners research and mass extinctions absolute and relative dating glacier scrapes and other paleoclimate data

Question 41

measuring the amount of radioactive element in a rock sample

Answer 41

absolute dating

Question 42

using an index fossils to determine the age of rock

Answer 42

relative dating

Question 43

examining unstable particles in igneous rock

Answer 43

absolute dating

Question 44

how many mass extinctions are there

Answer 44

5

Question 45

what caused these extinction events

Answer 45

global warming CO2 meters volcanos rapid climate change 60% of species died

Question 46

life first appeared in the ocean

Answer 46

true

Question 47

dinosaurs appeared before invertebrates

Answer 47

false

Question 48

Pangea was only one of Earth supercontinents

Answer 48

false

Question 49

humans evolved fairly recently in geologic time

Answer 49

true

Question 50

the k/t extinction was the only mass extinction in Earth’s history

Answer 50

false

Question 51

there was a time when Earth had no ocean

Answer 51

true

Question 52

humans and dinosaurs lived at the same time

Answer 52

false

Question 53

there have been times when the earth was covered in ice

Answer 53

true