Question

Cade did a science investigation in which he figured out which order he could layer four different liquids based on their densities. He reported his results using the drawing below.

How could Cade best improve his drawing?
A.
color the container
B.
add labels
C.
make it smaller
D.
show it to his teacher

Answer 1

@dr0zier99

Answer 2

https://media.studyisland.com/pics/162322layers.png

Answer 3

b add layers cause you do not know which one is which

Answer 4

not layers that says labels

Answer 5

oh sorry typo

Answer 6

but it is b

Answer 7

ok

Answer 8

Time Period Scientist Contributions
310–230 B.C. Aristarchus of Samos hypothesized that the Sun is much larger than the Earth
125-170 A.D. Ptolemy proposed that the Earth stands still and is the center of the universe
early 1500s Copernicus proposed that the Earth revolves around the Sun and rotates on its axis
1590s - 1630s Kepler discovered that the Earth and other planets move in elliptical orbits around the Sun
late 1700s Herschel discovered the planet Uranus
early 1900s Shapley discovered that the Sun is about 30,000 light years from the center of the galaxy


Which of the following is true of the history of astronomy?
A.
All important information about astronomy was discovered in ancient times.
B.
It was not possible to make observations about the universe until the 1500s.
C.
Astronomy has become less important over the past 500 years.
D.
Important discoveries and improved theories have been made throughout history.

Answer 9

Astronomy and astrology were often practiced together in ancient cultures, and astrology played an important role in the historical development of astronomy

Answer 10

so

Answer 11

d

Answer 12

ok

Answer 13

The children in Ms. Murray's class have to perform an investigation. The question their study must answer is "How do various types of plants differ in their physical features?"

What type of investigation must the children do?
A.
make a model of a plant, since they are hard to observe
B.
do an experiment on the chemical components of plants
C.
find several new species of plants
D.
observe and record physical characteristics of plants

Answer 14

observe and record physical characteristics of plants

Answer 15

d

Answer 16

Frank is doing an experiment to find out how the amount of oxygen dissolved in water affects the growth of algae in a body of water. He dissolves different amounts of oxygen in ten otherwise identical samples of water.

What should Frank do next?
A.
Place each sample of water in a freezer, and measure the temperature at which each freezes.

B.
Add equal amounts of algae to each sample of water, and measure the rates at which they grow.

C.
Carefully bring each sample of water to a boil, and measure the temperature at which each boils.

D.
Add a pair of minnows to each sample of water, and measure the rate at which they reproduce.

Answer 17

@phi