All cells need energy to function. Which cell organelle is responsible for producing energy in the cell?
mitochondria
Current electricity flows through
Wires
The girl's hair and the comb are attracting one another. The hair and the comb have
Opposite charges
It is as hot as the surface of the Sun
core
True or False : Viruses can reproduce (replicate) on a surface (ex: table, chair, etc.)
False
______________ helps us digest our food and they produce needed vitamins.
Bacteria
True of False: All microorganisms are harmful- True or False
False
what is a precipitate?
In a liquid or gas after a reaction and causes cloudiness( caused by solid forming)
The thickest layer of the Earth is
The mantle
The hottest layer of the Earth is
The inner core
What does an antibiotic do?
it kills bacteria
Earhquakes takes place on
The crust
A metal like copper is said to be ductile. This means it can be ... answer choices
bent into wires
which of the following is the smallest unit of life that can carry out all life functions?
The cell
what is the function of the cell nucleus found in both plant and animal cells?
to control cell activity
Why should cooked and uncooked food be stored separately?
To stop bacteria from spreading to one another
what is the function of a cell wall?
to protect and support the cell
The only way you can be certain that a chemical reaction has occured is by?
identifying one or more new chemical products
Finish of the following word equation Copper carbonate + hydrochloric acid = Carbon Dioxide + copper chloride + ______.
water
The smallest microorganism on earth is a _____________
Virus
Your feet are on
The crust
Chloroplasts in plant cells allow the plant to perform a function that animal cells cannot do. What is the main function of the chloroplasts found in plant cells?
to absorb light energy and manufacture food
How does a switch work?
it opens and closes the circuit
In another reaction, the student places a piece of metal into a test tube and adds an acid again. Its fizzes .. The gas produced is called...
Hydrogen gas
a copper penny turning greenish after a few years. - Chemical or Physical
Chemical
What is the thinnest layer of the Earth?
crust
It is totally liquid
outer core
Bacteria is known as ______________ in an ecosystem when feeding on dead organisms.
decomposers
Electric charges that are alike _______ each other.
repel
The student conducted an experiment with circuits. Why was the bulb bright when he closed the switch?
closing the switch completed the circuit
The number of atoms of oxygen in Cu(NO3)2 is ...
6
Which structures are found in every living cell?
cell membrane and cytoplasm
An gel ice pack getting cold after you put it in the freezer for an hour. - Chemical or Physical
Physical
The student arrived home and turned on a light switch, so she could see how to get to her bedroom. The switch allowed electricity to flow and was transformed into-
Light energy
Harmful or Helpful: Adding yeast to bread to help it rise
helpful
In what part of the plant cell does the process of photosynthesis take place? answer choices
chloroplasts
Test for carbon dioxide
Bubble through limewater and it will go milky
what is one basic function of the vacuoles?
storing water
Which cell structure is found in plant and animal cells and controls what can come into or leave a cell?
cell membrane
Jordan rubs her socks along the wool carpet as she walks across her house. She grabs onto a metal door knob. What will most likely happen as she touches the door knob?
She will get a light shock
Your experience on this site will be improved by allowing cookies.