what tool do you have to use to find the mass of a small pumpkin? A beaker B balance C stopwatch D meter stick E thermometer F graduated cylinder
Answers
Answer: Balance (B.)
Explanation:
Balances are used to measure mass.
Beakers and graduated cylinders measure volume. Stopwatches measure time. Meter sticks measure length. Thermometers measure temperature.
Related Questions
how to use a microscope> Everything I need to know
Answers
Always keep your microscope covered when not in use.
Always carry a microscope with both hands. Grasp the arm with one hand and place the other hand under the base for support.
Step 1: Set Up the Microscope. ...
Step 2: Clean the Lens. ...
Step 3: Prepare a Slide. ...
Step 4: Insert the Slide. ...
Step 5: Set Up for Viewing. ...
Step 6: Set the Light Control. ...
Step 7: Focus the Microscope. ...
Step 8: Increase Magnification.
Answer:
Keep in mind this changes from microscope to microscope.
Explanation:
On most classroom microscopes, there will be two knobs on either side of the scope. These will increase or decrease the height of the "stage", which is how you "focus" the microscope. The larger knob will move the stage the most, and thus, is called the coarse focus. The smaller knob is called the fine focus, and, you guessed it, will move the stage the least. There are usually three "objective lenses". Each will have a different magnification and will be listed on the lens itself. It rotates around the "revolving nosepiece". MAKE SURE THAT THE SLIDE IS LOWERED BEFORE ROTATING THE LENSES!!!! If you don't you WILL break the slide and you WILL get death looks from the teacher.
On the stage, there are two clips. They move NOT up and down, but they spin. what you want to do is to move the slide into the clips. They will not break if you do not bend them more than what the slide will bend them to.
The technique for focusing the microscope is really easy once you do it a few times. After making sure that the microscope is plugged in and the light on and the slide and lens in the lowest position/magnification (!) move the coarse focus knob so that the object in the slide is just visible. Once you do that, from there use the fine focus knob to make the object most visible.
These instructions vary slightly from model to model of microscope, but the picture below is very accurate and everything I warned you about is for all microscopes.
What properties did you identify when observing the sedimentary rock?
Answers
Answer:
Explanation:
Bedding. Bedding is often the most obvious feature of a sedimentary rock and consists of lines called bedding planes, which mark the boundaries of different layers of sediment. .
Graded beds are common when a sediment is being deposited by a slow‐moving current.
Fossils.
Desiccation cracks and ripple marks.
Sedimentary rocks contain rounded grains in layers. The oldest layers are at the bottom and the youngest layers are at the top. Sedimentary rocks may contain fossils of animals and plants trapped in the sediments as the rock was formed.
The properties you identify when observing is called bedding
Hydroelectric power plants capture the ______________ of falling water to generate electricity. The falling water turns a wheel called a turbine and ____________________ the mechanical energy of falling water into electrical energy.
Windmills capture the ____________________ of moving air to generate electricity. The moving air turns the blades of the windmill turning a turbine and changes the ___________________ energy of the moving air into electrical energy.
Fill in the blanks!
Thank you!
Answers
Answer:
1: energy
2: converts
Kinetic energy is either 3 or 4, those questions are really similar.
Answer:
1: energy
2: converts
3: energy
4: kinetic
Explanation:
What kind of group 1 atoms are the most reactive? a. Small atoms c. Atoms with the most electrons in the valence level b. Large atoms d. Atoms at the top of the periodic table
Answers
Answer:
large atoms
Explanation:
its kinda obvious
Answer:
large atoms (B)
Explanation:
200 milliliters is equal to:
Answers
Answer:
0.2 Litres
Explanation:
There are 1000 milliliters in a liter so 200 millimeters is equal to (200/1000) 0.2 litres.
Not quite sure what type of answer you were looking for but I hope this hoped anyway!
Answer:
O. 2 litres /200 cm³
Explanation:
Litre:200 divided by 1000 coz one litre is equal to 1000 millilitres and Inorder to convert between smaller to bigger units you divide. Cubic centimetre:because one cubic centimeter equals one millilitres therefore 200ml will be equal to 200cm³
Energy cycles through ecosystems because it returns to the Sun true or false
Answers
Answer: this is false
Explanation:Energy does not cycle the way nutrients and atoms do. Energy enters the ecosystem from the Sun and exits after the organisms have taken as much as they need.
Answer: false
Explanation: Energy does not cycle the way nutrients and atoms do. Energy enters the ecosystem from the Sun and exits after the organisms have taken as much as they need. Organisms release energy back into the biosphere as heat. It is usually in the form of heat, not the electromagnetic radiation from the Sun.
Which of these is a characteristic of index fossils?
Found in the topmost rock layer
Found in many layers of the same rock
Have already established relative age
Are limited to a particular geographic location
Answers
Answer:
Which of these is a characteristic of index fossils?
Found in the topmost rock layer
Found in many layers of the same rock
Have already established relative age X
Are limited to a particular geographic location
If you weighed the atoms that appear on the reactant side of the equation, would they have the same mass as the atoms that appear on the product side? for N2 + H2 -> NH3
Answers
Answer:
No
Explanation:
If you added the reactants on the reactant side because there is one atom for nitrogen on the product side while there is two atoms on the product side. There are more hydrogen products on the reactant side as well.
HELP! DUE NEXT PERIOD!
A puddle of water that Kim observed on the way home from school had frozen by the next morning. what caused this change?
A. Energy was removed from the water molecules
B. Attractions between the water molecules decreased
C. The volume of the water was reduced
D. The water has undergone a chemical reaction
Answers
Answer: A
Explanation: the energy in the water has faded and then with the removal of energy often comes a state change
what is methyl orange
Answers
Answer:
orange made up from methyl
What percentage of plant and animal species on Earth are found in tropical rainforests?
10%
20%
30%
more than 50%
Answers
The correct answer is more than 50% .
Why more than 50%?
Rainforests are Earth’s oldest living ecosystem s, with some surviving in their present form for at least 70 million years. They are incredibly diverse and complex, home to more than half of the world’s plant and animal species even though they cover just 6% of Earth’s surfacelearn more about tropical rainforests below,
https://brainly.in/question/819263
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Why is it easier for most metal elements to gain electrons rather than to lose them?
PROPER EXPLANATION
Answers
Because it is easier for metals to shed their valence electrons and form cations for a stable configuration, they have comparatively few chances of acquiring electrons.
The metals usually complete their octet in each reaction. The outermost electron shell often contains more electrons in metals. Metal atoms lose electrons when they interact with other non-metals because the energy of an electron in its outermost shell is very weak.
Metals often have low ionization energy because their electrons are positive in nature. Metals lose their electrons and trade them with non-metals to achieve a stable configuration.
To know more about electrons in metals elements,
https://brainly.com/question/1511116
Answer:
metals typically have relatively low ionization energies
Explanation:
Match these items.
1. imprint of plant or animal
original-remains fossil
2. undecayed plant or animal part
carbonized fossil
3. replaced by a mineral
petrified fossil
4. only carbon remains
cleavage
5. mountain
geology
6. from magma
metamorphic
7. from physical and chemical changes
igneous
8. sandstone
print fossil
9. helps identify rocks
landform
10. science of Earth
sedimentary
Answers
1. print fossil
2. carbonized fossil
3. petrified fossil
4. cleavage
5. landform
6. igneous
7. metamorphic
8. print fossil
9. geology
10. sedimentary
\(\)
The print fossil, original-remains fossil, petrified fossil, carbonized fossil, landform, igneous, metamorphic, sedimentary, cleavage, and geology are the respective matches as given in the question.
Print fossil is imprint of plant or animal and basically known as fossil impression. Original-remains fossil comprises of the original tissues and parts of organism and undecayed plant or animal part. Petrified fossil is replaced by a mineral. Carbonized fossil is only carbon remains. Landform is a mountain. Igneous is from magma.
Metamorphic is from physical and chemical changes. Sedimentary rocks are sandstone. Cleavage helps to identify rocks. Geology is the study of science of earth.
Learn more about rocks and fossils:
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Im lost pls help me answer this and don't send me Links its annoying
Answers
Answer:
I think its 40 but Im not sure
hope this helps
have a good day
Explanation:
Imagine that you have just made a fresh apple pie. When you take it out of the oven, it is so hot, you can't even hold it in your hand; so you place it on the kitchen table. Now, several minutes later, you are able to cut a slice and eat it. The apple pie has cooled, the question now is, where has the heat gone? Select which of the following below is most likely to have occurred and provide a well developed, written explanation for your response using scientific principles learned in class.
Answers
Answer:
Radiation (I think)
Explanation:
The electromagnetic radiation emitted from the source carries heat energy away from the source to surroundings, the infrared or electromagnetic waves escape from the hot apple pie through radiation into the surrounding air.
Imagine that you are a leaf on a plant, and you realize that you are running low on supplies to do your job. You decide to text the roots to set up a delivery. Write a text message conversation between the leaf and the roots that discusses and arranges this delivery.
Answers
Answer:
Leaf: Hey Roots, this is Leaf. I'm running low on supplies here. Can you send some over?
Roots: Hey Leaf, of course. What kind of supplies do you need?
Leaf: I need more water and nutrients. Can you send some my way?
Roots: Sure thing, we'll get on it right away. How much do you need?
Leaf: Just enough to keep me going for a few more days. Can you also send some sunlight my way?
Roots: Sorry, we can't help with that one. But we'll make sure to send enough water and nutrients to help you out.
Leaf: Thanks, Roots. You're the best. Let me know when the delivery is on its way.
Roots: Will do, Leaf. Hang in there. Delivery should be there soon.
Roots: Hi Leaf! Of course, we're here to help. Sorry to hear you're running low. We'll get right on it. How much water and which specific nutrients do you need?
Hope it helps! :)
Leaf: Thanks, Roots! I'll need a good soak of water, and I could use some extra nitrogen and potassium for optimal photosynthesis. Can you also throw in some magnesium?
Roots: Noted, Leaf. Water, nitrogen, potassium, and magnesium coming right up! We'll absorb them from the soil and deliver them through the xylem. Just hang in there!
Leaf: Awesome, Roots! Your support is much appreciated. Let's make sure this delivery boosts my chlorophyll production so I can keep producing energy for the whole plant.
Roots: Absolutely, Leaf! We're here to keep the whole plant thriving. Your health is our priority. We'll work together to ensure you have everything you need for top-notch photosynthesis.
Leaf: Thanks for being the best roots a leaf could ask for! Can't wait to feel rejuvenated and get back to making food for the plant.
Roots: You're welcome, Leaf! We're all part of the same team. Stay patient, the delivery will be on its way soon. We'll keep you updated.
Leaf: Will do, Roots! Looking forward to the delivery. Keep up the great work down there!
Roots: Thanks, Leaf! We'll keep the nutrients flowing. Take care up there and keep shining!
Leaf: You too, Roots! Catch you later!
Roots: Until next time, Leaf! Stay green and healthy!
Analyze this map and provide 10 specific examples of weather conditions found in
this map. Number your examples from 1-10 and use the textbox. Give detail.
Answers
Answer:
May be thay can be tropical in south east and wet in middle, hot in west and cold in north.
Explanation:
(Sunny, windy, cloudy, cold, foggy, rainy, snowy, clear, warm(peace), hot(uncomfortable))
BRAINLY ME PLEASE IF HELPFUL!!!
How to work out the relative mass of potassium? What is the calculation? ( explained very easily )
Answers
Answer:
39
Explanation:
Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.
———————————
(1/12)th Mass of one C12 atom
scientists are certain that there are no undiscovered elements missing from the periodic table from hydrogen to lawrencium.
Explain why.
Answers
Answer:
Because no free places exist known and the succession of elements in the periodic table is very rational explained: increasing of number of electrons with 1, spectral data, chemical properties similarities
Explanation: i just did the test
Answer:
Explanation:
You are talking about the first 103 elements. An element is by definition identified with the number of protons in its nucleus, the so-called atomic number. Any atom with 6 protons is carbon, it cannot be anything else. So there cannot be any missing elements out to 103, as all of these elements have been confirm discovered by accepted scientific methods.
For example, here is a link to a CHEM Study film showing how transuranium elements (i.e. atomic number > 92 and man-made) can be separated from one another and verified as distinct.
Number the events from earliest (1) to most recent (6) to outline the development of the cell theory.
____ Anton van Leeuwenhoek observed small organisms he called “animalcules.”
_____ Robert Hooke was the first to use the word “cell.”
_____ Matthias Schleiden theorized that plants are made of cells.
______ Theodor Schwann theorized that animals are made of cells.
______ Hans and Zacharias Janssen created the first microscope.
_____ Rudolf Virchow theorized that cells come from other pre-existing cells.
sorry if it's the wrong subject, science wasn't on there sorry
offering 40 points for this question
Please answer correctly
brainly for the correct answer
Answers
Answer:
Explanation:
__3__ Anton van Leeuwenhoek observed small organisms he called “animalcules.”
___2___ Robert Hooke was the first to use the word “cell.”
___4___ Matthias Schleiden theorized that plants are made of cells.
___5___ Theodor Schwann theorized that animals are made of cells.
___1___ Hans and Zacharias Janssen created the first microscope.
___6___ Rudolf Virchow theorized that cells come from other pre-existing cells
3
2
4
5
1
6
What are the first few items you should evaluate when reading a graph”?
Answers
Answer:
punctuation, and if it makes sense
Which of the following statements fully describes what an object may do when it experiences unbalanced forces? Select the two best answers.
A. It may change directions.
B. It will move at a constant speed.
C. It may slow down.
D. It may slow down or speed up.
E. It will stay stationary.
Answers
Answer:b
Explanation:
Please help, I’ll give brainliest!
Answers
Answer:
the coefficient of NO3 is going to be 2
Explanation:
Cu+2NO3−+2H2O→Cu2++2NO2+4OH−
What kind of rocks would you expect to see on Mars? What evidence supports your response?
Answers
1. Which force below is an attractive force that pulls objects together?
inertia
friction
air resistance
gravity
Please help .
Answers
Chiara knows that weight is affected by gravitational pull. She is putting together a poster to display in her classroom.
Since the moon's gravity is less than Earth's, all objects, including mammals, have different weights on the moon than on Earth. Use the table below to calculate how much a dog weighs on the moon.
Answers
Answer: A
Explanation: 150 lb * 1/6 = 25 lb
Chiara knows that weight is affected by gravitational pull. The weight of the dog on the moon is 25 lb. The correct option is A.
What is gravitational pull?Gravitational pull is the force of gravitation that pulls all the objects towards themselves. The force of gravitation is different on different planets, and on the moon, the gravitational pull of the moon is lesser than the earth.
The weight of the dog on the earth is 150 lb
The weight of any object on the moon is 1/6th of the weight of any object on the earth.
So to calculate the weight of the object on the moon, we should multiply the given weight of the dog on the moon by 1/6 to get the result.
150 lb x 1/6 = 25 lb
Thus, the weight of the dog on the moon is 25 lb. The correct option is A.
To learn more about gravitational pull, refer to the below link:
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Balance the following chemical
equation by providing the correct
coefficients.
[?]Pb(NO3)2 + [?] Na2Cr04
[?]PbCrO4 + [?]NaNO3
Answers
Answer:
Pb(NO3)2 + Na2CrO4 ➡️ PbCrO4 + 2NaNO3
The balanced equation is: 3 Pb(NO₃)₂ + 2 Na₂CrO₄ → 3 PbCrO₄ + 6 NaNO₃
To balance the chemical equation we need to ensure that the number of atoms of each element is equal on both sides of the equation.
Let's start by balancing the lead (Pb) atoms:
On the left side, we have one Pb atom in Pb(NO₃)₂, and on the right side, we have one Pb atom in PbCrO₄. So, the coefficient for PbCrO₄ is already balanced as 1.
Next, let's balance the nitrogen (N) atoms:
On the left side, we have two N atoms in Pb(NO₃)₂, and on the right side, we have one N atom in NaNO₃. To balance the N atoms, we need to put a coefficient of 2 in front of NaNO₃.
Now, let's balance the oxygen (O) atoms:
On the left side, we have six O atoms in Pb(NO₃)₂, and on the right side, we have four O atoms in PbCrO₄ and three O atoms in NaNO₃. To balance the O atoms, we need to put a coefficient of 3 in front of Pb(NO₃)₂.
Finally, let's balance the sodium (Na) and chromium (Cr) atoms:
On the left side, we have two Na atoms in Na₂CrO₄, and on the right side, we have two Na atoms in NaNO₃. To balance the Na atoms, we need to put a coefficient of 2 in front of Na₂CrO₄.
On the left side, we have one Cr atom in Na₂CrO₄, and on the right side, we have one Cr atom in PbCrO₄. So, the coefficient for Na₂CrO₄ is already balanced as 1.
The balanced equation is: 3 Pb(NO₃)₂ + 2 Na₂CrO₄ → 3 PbCrO₄ + 6 NaNO₃
Know more about coefficients:
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Please do asap! ITS LATE
Answers
Answer:
2.The higher the humidity, the more water vapor the air contains, and warm air can hold more moisture than cooler air.
Explanation:
thats all i can give you,, it's too many words tbh
Who was settling in Minnesota after the Civil War and why?
Answers
What is an ellipse please help)
Answers
In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. As such, it generalizes a circle, which is the special type of ellipse in which the two focal points are the same.
Maybe they might use that math thing for Science.