1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
just olya [345]
3 years ago
7

Al wonders if adding salt to water will affect how long it takes the water to freeze. Al thinks that salt water will freeze more

quickly than fresh water. He decides to check his hypothesis by conducting an experiment. Al takes two ice trays and fills one with distilled water and the other with distilled water that has two tablespoons of salt added. He makes sure he puts exactly the same amount of water in each ice tray. Al takes the trays and puts them side by side in the freezer. Al checks the ice trays every 10 minutes to see if the water in each tray has begun to freeze. Al finds that after 20 minutes the water in the ice tray without the salt has started to form ice, while the ice tray with the salt water is still completely liquid.
What is his hypothesis?
a. Salt water freezes slower than fresh water.
b. Water freezes in a freezer
c. Salt water freezes faster than fresh water.
d. water will freeze in 20 minutes
Biology
1 answer:
jasenka [17]3 years ago
5 0

salt water freezes slower than fresh water

You might be interested in
What is aerobic metabolism?
avanturin [10]
Aerobic metabolism<span> is the creation of energy through the combustion of carbohydrates, amino acids and fats in the presence of oxygen. The body burns sugars, fats, and proteins.</span>
3 0
3 years ago
Read 2 more answers
In order for an atom to be considered "neutral", which of the following must be true?
Murrr4er [49]

Answer: C ) 'There are more protons than electrons'

4 0
2 years ago
Read 2 more answers
What are some ways that living things can be classified? What characteristics should we look at when putting living things into
ANTONII [103]

The classification of living things includes 7 levels: kingdom, phylum, classes, order, families, genus, and species. Characteristics such as appearance, reproduction, mobility, and functionality are just a few ways in which living organisms are grouped together. These specialized groups are collectively called the classification of living things.

Hope this helps :)

7 0
2 years ago
Considering the drifting of continents, how do you explain the abundance of marsupials and the absence of native placental mamma
garri49 [273]

Answer:

this phenomenon is a natural consequence of evolutionary processes and continental drift  

Explanation:

Marsupials are mammals in which newborn offspring are carried in a pouch of the female (mother) body. On the other hand, placentals are mammals that complete embryo development in the mother's body, in the placenta. All the extant marsupials are endemic to Australia and the Americas. It has been shown that marsupials diverged (evolved) in South America, Australia and Antarctica when these landmasses were joined. In Australia, marsupials evolved to fit an ecological niche, which can be attributed to geographic isolation due to continental drift, while placental mammals are relatively recent and more scarce (mainly bats and rodents) within this region.

5 0
3 years ago
Using the following vocab words, write them in order of smallest to largest level
7nadin3 [17]

Answer:

Cells, Tissues, Organs, Organism

I hope this helps!

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the object of mitosis? What mechanism in mitosis allow this to occur?
    9·1 answer
  • If I turn my computer off at least once a week, it will run faster. What is the independent variable? What is the dependent vari
    12·1 answer
  • Why does quadrat sampling provide an accurate estimate of a population size within a defined area? Explain your reasoning.
    13·1 answer
  • To remain healthy, organisms must be able to obtain materials, change materials, move the materials around, arid get rid of wast
    7·1 answer
  • Hemoglobin is made up of the protein heme and the red pigment globin. Hemoglobin is made up of the protein heme and the red pigm
    10·1 answer
  • What is food called when it initially enters the stomach?<br>-Anatomy: digestive system
    13·2 answers
  • What are invasive species?
    6·1 answer
  • How can fossils help us<br> understand the Earth's history?
    9·1 answer
  • The first or smallest level of organization in the human body is the​
    8·2 answers
  • Please help Think about the effect that NASA technologies have on your everyday life. What’s your opinion of the reciprocal rela
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!