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WorksheetsScience Quiz 2024-25
Total questions: 55
Worksheet time: 29mins
Based on the table, which element do you think is most likely a Noble Gas?
Element 1
Element 2
Element 3
Element 4
What do you think is the smallest unit of helium that STILL maintains the characteristics of helium?
Atom
Electron
Nucleus
Proton
Rohan and Mia are on a quest to find an element that REACTS like Bromine (Br). Which one should they choose?
Si
Xe
O
F
Aria and Michael are sharing a Pure Protein bar with a density of 1.35 g/㎤. If they cut the protein bar exactly in half, what is the density of each half?
2.70 g/cm^3
0.675 g/cm^3
1.35 g/cm^3
Liam finds a mysterious rock and wants to uncover its identity. Follow his steps:
* Liam uses a triple beam balance; Mass = 442.5 grams.
* He fills a graduated cylinder with 200 mL of water.
* When Liam drops the rock into the cylinder, the water level rises to 245 mL.
* He calculates the rock's volume using the displaced volume method.
What is the probable identity of the rock?
Gold
Copper
Lead
Iron
Abigail and Luna measure the mass and volume of four mysterious metal pieces. Can you help them figure out with density calculations which two samples might be made of the same metal?
Metal A
Metal B
Metal C
Metal D
Grace and Aiden are at a winter festival, watching ice sculptures. In which state of matter do the particles only vibrate in place?
Solid
Liquid
Gas
Plasma
Imagine you're an explorer like Harper, venturing through the cosmos! What form of energy, traveling in electromagnetic waves, can journey through the vast vacuum of space?
Thermal
Electromagnetic
Electrical
Mechanical
Chemical
Which of the following scenarios best exemplifies the conversion of chemical energy to electrical energy and then to radiant energy?
A battery powering a flashlight
A car rolling down a hill
A plant photosynthesizing
A rock sitting on a table
What is the form of energy that powers the motion of electrons through your laptop power cord?
Thermal
Electromagnetic
Electrical
Mechanical
Chemical
What form of energy would be used to describe the total energy of vibrating particles?
Thermal
Electromagnetic
Electrical
Mechanical
Chemical
Why do atoms bond?
They want to be neutral.
They want a full valence shell.
So they can become more reactive.
To form ions.
What best describes an ion?
an electron that is shared among elements during bonding.
an electron that is transferred during bonding.
an atom that has become positively or negatively charged when bonding.
a neutral atom.
When you are making ice cream you mix and freeze cream, sugar, and vanilla. What kind of change is it?
Physical Change
Chemical Change
Imagine Benjamin and Ethan are camping in the woods. They decide to light a piece of wood on fire to roast marshmallows. What kind of change is happening to the wood?
Physical Change
Chemical Change
Isla and Ava are conducting a fun science experiment. They leave a nail outside in the rain and notice it starts to rust. What kind of change is happening to the nail?
Physical Change
Chemical Change
When you add red food coloring to the white icing.
Physical Change
Chemical Change
Imagine Harper, Lily, and Elijah are on a quest to find a container filled with a pure substance. Which of the following do they discover?
This classroom filled with air
A balloon filled with helium
A jar filled with salt water
In the chemical formula NH3, what does the subscript 3 represent?
The number of nitrogen and hydrogen atoms in each molecule of ammonia
The number of hydrogen atoms in each molecule of ammonia
The number of nitrogen atoms in each molecule of ammonia
Which equation follows the Law of Conservation of Mass?
(Hint: It's the one that's perfectly balanced!)
2CS2+3O2 >CO2+2SO2
2Na₂O₂ + 2H₂O ----> 4NaOH + O₂
2HgO−−−−>Hg+2O2
Which one is balanced? Below is the original, unbalanced equation.
___ KI + ___ Cl₂ ----> ___ KCl + ___ I₂
2 KI + Cl₂ --> 2 KCl + _ I₂
2 KI + 2Cl₂ ---> 2 KCl + _ I₂
4 KI + 2Cl₂ ----> 2 KCl + ___ I₂
Harper, Luna, and Grace are on a treasure hunt! They need to find the object with the smallest volume to unlock the next clue. Which object should they choose?
button
nail
battery
screw
Maya and Anika are conducting a fun experiment with a mysterious button! The mass of the button is 4 grams. Can you help them find the density of the button using the displaced volume?
Remember, D=M/V!
1 g/mL
2 g/mL
4 g/mL
DIRECTIONS: Join Emma, Harper, and Olivia on a cosmic adventure! Help them place the terms in order from the LARGEST mass to the SMALLEST mass.
Nucleus
Neutron
Electron
Atom
Atom
Nucleus
Neutron
Electron
Nucleus
Atom
Electron
Neutron
Electron
Neutron
Nucleus
Atom
How many protons does Argon have?
18
39.948
40
22
How many electrons does one atom of Argon have?
18
39.948
40
22
Hey science explorers! How many neutrons are in Argon? Don't forget to round up!
18
39.948
40
22
Abigail was on a quest to discover a mysterious nonmetal element. It has 3 energy levels (periods) and MORE THAN 6 valence electrons. Which one works?
Selenium, atomic number 34
Bromine, atomic number 35
Chlorine, atomic number 17
Radon, atomic number 86
Ava gets energy from the food she eats and transforms that energy as she moves. Which energy transformations occur as Ava rapidly rubs the palms of her hands together?
mechanical to thermal to electrical
chemical to mechanical to thermal
mechanical to chemical to sound
chemical to sound to electrical
Ava is learning about the elements in her chemistry class. She knows that the number of protons in an atom determines its atomic number. Which of these statements is INCORRECT?
The number of protons determines the atomic number.
The atomic number and number of protons are the same.
An atomic number of 5 means there are 5 protons.
The number of neutrons is always the same as the number of protons.
During a science class, Isla asked, "What is an atom?"
Located in the nucleus
The smallest unit of an element that maintains its properties of that element
The largest unit of an element that maintains its properties of that element
During a science class, Sophia is looking at a diagram of an atom. What subatomic particle is the arrow pointing towards?
Proton
Neutron
Electron
Electron Cloud
What subatomic particle is the arrow pointing towards?
Proton
Neutron
Electron
Electron Cloud
What subatomic particle is the arrow pointing towards?
Proton
Neutron
Electron
Electron Cloud
Where are electrons located?
In the Nucleus
in the electron cloud
During a science class, Grace asked why water is often referred to as the greatest solvent on Earth. What is the reason for this?
Because it can be a solid, liquid, or gas.
Because roots can draw it into plants.
Because of its ability to dissolve so many substances.
Because it has two hydrogen atoms in its molecule.
A single molecule of water has ______ oxygen atom and ______ hydrogen atoms.
one oxygen atom and two hydrogen atoms
two oxygen atoms and one hydrogen atom.
Read and identify the measurements on the triple beam balance.
163.5 g
253.5 g
263.5 g
283.5 g
What is the volume of this graduated cylinder?
2.5 mL
2.6 mL
2.65 mL
2.7 mL
ionic bonds like NaCl are formed between
A metal and non-metal
Two metals
Two non-metals
Covalent Bonds such as with carbon dioxide are made up of:
A metal and a non-metal
Two non-metals
Two metals
Where are metals located?
blue
red
green
Where are non-metals located?
blue
red
green
Where are metalloids located?
blue
red
green
What subatomic particle is responsible for bonding between atoms?
protons
neutrons
nucleus
electrons
Ionic bonds______ electrons, covalent bonds______electrons
transfer, share
share, transfer
Methane is an example of a
Covalent Bond where the valence electrons of two non-metals are shared.
Ionic Bond where the valence electrons from a metal are transferred to a non-metal.
An ion that loses electrons and has an overall positive charge.
Cation
Anion
An ion that gains electrons and has an overall negative charge.
Cation
Anion
What is density?
the amount of matter in an object
anything that has mass and volume
the amount of space an object takes up
the mass of a material in a given volume
True or False: The density of a specific type of material never changes.
True
False
Choose three statements that correctly identify the relationship of mass, volume, and density by clicking the sentence.
Density increases if the mass of an object increases and the volume remains the same.
If the volume of an object increases and the mass remains the same, then density increases.
Density remains the same if the mass and volume of an object increases proportionally.
Density increases if the volume of an object decrease and the mass remains the same.
Density decreases if the mass and volume of an object decrease proportionally.
Measure the length of the arrow in centimeters using exact measurements.
3 cm
3.3 cm
3.35 cm
