Sunscreen protects skin from which of these factors?
UV rays Click to see the answer
The study of optics is called what?
Light
Bean curd is often called what?
Tofu
Substances are made up of which of these?
Atoms
What color is beryl when it includes chromium?
Green
Which herb has needle shaped leaves?
Rosemary
Uranium was named after which of these planets?
Uranus Click to see the answer
A halibut is which of these?
Fish
Which of these best describes the climate in of the rain forrest?
Hot and wet
Glucose is best described as which of these?
Sugar
Gluten iis which of these food types?
Protein
The maximom speed that a person can reach when falling is called what?
Terminal velocity
Where do grapes grow?
On vines
A kiwifruit's outer skin is which color?
Brown
How many oxygen atoms are present within the chemical compound carbon dioxide?
2
The flow of electrical charge is better known as what?
Current Click to see the answer
Which of these lights is best eployed for night vision?
Infrared
Methamphetamine was first synthesized in Japan in 1894 by who?
Nagayoshi NagaiĀ
Out of the following fruits, which has segments?
Tangerine
CO2 is the chemical formula for which of these gases?
Carbon dioxide
Dried vanilla pods are what color?
Black
Oranges grow in which of these locations?
On a tree
The most abundant pure element in the Earth's atmosphere is which of these?
Nitrogen
Friction increases when which of these also increases?
Speed
Which of the options is a type of fungus?
Mushroom
LEDs emit which of these?
Light
Leukemia sufferers have a too big a quanitity of what in their bodies?
White blood cells
Which element makes up the Ozone?
Oxygen
What part of the tree do cinnamon sticks come from?
Bark
Aloe vera is an extract of what?
Plant
Which color is in the middle of red and yellow in the rainbow?
Orange
Which of these can be in the form of a rocket or streak?
Lightning
A whole bulb of garlic contains which of these?
Cloves
21% of air is what up of which of these gases?
Oxygen
Which of these is the chemcial formula for hydrogen chloride?
HCl
Contrary to popular story, who produced the first vodka recipe?
Isidore
A rainbow is formed with which two weather conditions?
Sun and rain
The neutron was discovered by which famous scientist?
James Chadwick
Which of these fruit has small black seeds in it's core?
Papaya
Which of these materials will float in water?
Balsa
Which animals has close to UV vision?
Parrot Click to see the answer
Which of these are required to have a thunderstorm?
Warm and humid
The gravity on the moon is what fraction of the gravity found on planet Earth?
Sixth
Giant thunderclouds called 'supercells' set off which of these?
Tornado
Electron configuration was initially conceived by which of these models?
Bohr model
The tomato belongs to which family?
Nightshade
Atoms have no overall ______?
Charge Click to see the answer
One billionth of a meter is known by what name?
Nanometre
What is the cause of hair standing upright?
Static
Protons and neutrons have roughly the same _______?
Mass
What gas is commonly used to inflate party ballons?
Helium
Bakelite is a early version of which of these materials?
Plastic
Scientists that studies plants is called what?
Botanist
Classical mechanics is better known as what?
Newtonian mechanics
Compounds that are formed from non-metals are called what
Molecules
What type of protein is found in human hair?
Keratin Click to see the answer
Who discovered the electron in the year 1887?
Joseph John Thomson
Slope, precipitation and instability causes which of these?
Avalanche
Protons make up which of these?
Light
Atoms joining together form what?
Compounds
Sucrose is also known as what?
Sugar
HCN is the molecular formula of which of these compounds?
Hydrogen cyanide
Which scientist first discovered the existence of photons?
Max Planck
How many amino acids are in the human body?
21
Anvil, sheet and ribbon are types of what?
Lightning
An antiparticle has the same mass as the particle but differing what?
Charge
The sun is how many times hotter than a lightning bolt?
3
Of these, which is a fundamental constituent of matter?
Quark Click to see the answer
Vitamin B is also called what?
Folic acid
Silicon dioxide is used iin which one of these household products?
Toothpaste
Ylang-ylang oil is an extract of what?
Tree
X-rays can identify bone structure but which scientist discovered this?
Wilhelm Rontgen
Compounds formed from both metals and non-metals are collectively known by what name?
Ions
Soy flour is made from which of these?
Soybean
The banana originated from where?
Southern Asia
The hardness of materials is measured by what?
Mohs scale
Caviar traditionally comes from which fish?
Sturgeon
Metals can conduct which of these?
Electricity
Which is the best thermal conductor?
Stainless steel knife
Ginger grows where?
As a root
Apache and Inca Dawn are types of what?
Potato
If a plant is saxicolous it will grow where?
On rocks
In order to cut the time needed to identify victims of mass disasters, Japanese researchers have developed an automated identification system which uses what?
Dental x-ray matching system
The first organisms genetically engineered in 1970s were what?
Bacteria
Decaying radioisotopes emit which type of radiation?
Gamma-rays
Which of these contains mercury?
Tuna
Saturated hydrocarbon is better known as what?
Alkane
The term gamma rays was coined by which scientist?
Ernest Rutherford
The sharing of electron pairs between atoms is known as what in the field of chemistry?
Covalent bonding
After the explosion in Fukushima power plant in 2011, Japanese scientists found way to remove radiation from what?
Water and Soil
In the 1970s, which organism was first genetically engineered?
Mouse
Petrol is made up of what type of compounds?
Hydrocarbons
What is the correct name for a type of peach?
Elberta
Singultus is a technical name for which of these?
Hiccups
Two protons and two neutrons bound together are commonly called what?
Alpha particle Click to see the answer
DNA strands are held together by which of these?
Base Pairing
Which letter commonly expresses the speed of light?
c
The mass of the product in a chemical reaction always equals the mass of which of these?
Reactants
A molecule that can act as an acid is best described as what?
Amphoteric
The Fischer-Tropsch process is used with which of these?
Alkanes
Nonmetals form what kind of bonds?
Covalent Click to see the answer
The atomic number of an element is down to the number of what?
Protons
Which of these is a type of heather?
Erica
What unit is used to measure electricity?
Volt
On the Mohs scale, what is the softest mineral
Talc
Which colorless, odourless substance is the majoriy constituent of natural gas?
Methane
Entomologists study what?
Insects
Out of these waves, which has the most energy?
Gamma rays
All objects emit and absorb which of these?
Infrared radiation
Atoms with the same atomic number but with different neutron numbers are commonly known as what?
Isotopes Click to see the answer
Which part of an atom are where the protons can be found?
Nucleus
The mass number of any element is represented as what?
A
Which of these is a correct statement about iron?
It can be magnetised
The only metal that is naturally antibacterial is what?
Copper
Proteins made up of which of these?
Amino acids
Adenine, thymine and cytosine are components of which of these?
DNA
The antiparticle of an electron is called what?
Positron
Radioactive material emit alpha and what other type of particle?
Beta
Which waves in the electromagnetic spectrum is the longest?
Radio
Applying heat to a solid imateiral in order to turn it into liquid is known as what?
Melt
The charge number of an element is usually represented as what?
Z
The wavelength range of visible light is what?
400-700nm
Who claimed that light has a finite speed before anyone else?
Empedocles
The process of heating a solid in a liquid until it becomes part of the liquid is known as what?
Dissolving
The Haber process is used to make which of these?
Ammonia