Which of the following is a chemical, rather than a physical, property of matter?

It is found in the periodic table's 18th column. Which element below is a noble gas?

Their six types are up, down, bottom, top, charm, and strange. Which of the following choices names the smallest known particles in physics?

In the diagram seen here, the arrow points to what part of a transverse wave?

Newton's First Law of Motion is also known as the Law of what?

When an inclined plane wraps around a cylindrical object, which of the following simple machines results?

The SPF in sunscreen protects the skin from most of the waves in which portion of the electromagnetic spectrum?

Which of the following SI units measures electrical resistance?

Match each method of heat transfer with its example.

x. conduction 1. sunlight warming a snake

y. convection 2. hot sand burning someone’s feet

z. radiation 3. heated soup rising while cool soup sinks

Which of the following organs is made of cardiac, rather than smooth, muscle?

The chart seen here is an example of what scientific tool?

The femur is the largest what in the human body?

Which of the following animals uses echolocation for finding food and navigating?

In diabetes, the body doesn’t produce enough, or is resistant to, which substance below?

Which of the following is an example of a reflex action?

It occurs before cell division. In both mitosis and meiosis, which phase below allows a cell to carry out its typical functions?

For humans, it averages 40 weeks. Which of the following choices names the length of time between a mammal's conception and birth?

Attached earlobes and round eyes are examples. Which word below means a trait is expressed because an organism lacks the dominant allele for a given gene?

Match each nitrogenous base with its description.

x. uracil 1. pairs with thymine in DNA

y. adenine 2. replaces thymine in RNA

z. guanine 3. pairs with cytosine in RNA and DNA

Which ecological term below refers to the maximum number of organisms in a species that an environment can support indefinitely?

Three of the following organisms are photosynthetic autotrophs. Which one is a heterotroph?

Which ecological division below is the smallest?

Some people use it interchangeably with percolation. Which of the following water cycle steps occurs when liquid water enters the soil surface?

Which atmospheric layer below, the second lowest, houses the ozone layer?

It is made of ice crystals arranged in narrow, wispy bands. Which of the following cloud types is typically found at the highest altitude?

Which rock below is metamorphic?

It sits approximately between the orbits of Mars and Jupiter. Several minor planets originate in which of the following regions of our galaxy?

Below are four dwarf planets. Which one, discovered by Clyde Tombaugh in 1930, was considered one of the solar system's nine planets until its 2006 demotion?

Match each star with its constellation.

x. Polaris 1. Orion

y. Sirius 2. Canis Major

z. Rigel 3. Ursa Minor

Which of the following planets has NO moons?

Which of the following choices do scientists generally consider the final step in the scientific method?

What piece of lab safety equipment is seen here?

It magnifies small objects. Stereo, polarizing, compound, inverted, and metallurgical are five of the categories of what piece of lab equipment?

Which choice below names a plant that has fronds and reproduces by spores rather than seeds?

Which one of the following trees is a conifer?

Below are four plant parts. Which one carries food from the leaves to the rest of the plant?

Which stage of a butterfly's life cycle is seen here?

Which one of the animals below does NOT lay eggs?

Match each animal with its phylum.

x. clam 1. Mollusca

y. crab 2. Echinodermata

z. starfish 3. Arthropoda

Which condition below does a virus cause?

Penicillin is an antibiotic made from which of the following?

Identify the bacterial shape seen here.

It was first detected in Botswana and South Africa in November 2021. On December 1, 2021, which of the following Covid variants of concern made its first confirmed appearance in the U.S.?

Below are four scientists. Which one spent her career studying the lives of chimpanzees?

Which of the following scientists studies prehistoric life by analyzing plant and animal fossils?

In 1901, he sent the first radio transmission across the Atlantic Ocean. Which man below shared a Nobel Prize in Physics for his development of the wireless telegraph?

It is a nonuniform curvature of the cornea. Which of the following conditions causes blurred vision?

Which one of the conditions below affects the gums?

Match each organ with its body system.

x. larynx (voice box) 1. respiratory system

y. spinal cord 2. nervous system

z. veins 3. circulatory system

Longitudinal waves exhibit which of the following in areas where particles are close together and under high pressure?

Which of the following substances can become a superconductor of electricity at certain temperatures?

Below are four cell organelles. Which one contains enzymes that digest particles and, after the cell's death, disintegrate it?

It may occur when roots encounter a rock. In which choice below does a plant grow toward or away from a touch stimulus?

Which pairing below is an example of mutualism?

Which of the following pieces of laboratory equipment do scientists use to weigh their chemical samples?

Below are four parts of a plant seed. Which one is an embryonic leaf?

Which animal below is a marsupial?

Anaerobic bacteria are defined as bacteria that do NOT need which of the following?

Match each nutrient with its function.

x. protein 1. primary energy source

y. carbohydrate 2. absorb certain vitamins

z. fat 3. build and repair tissue

The alkali metals make up Group 1 of the periodic table. Which of the following choices is an alkali metal?

The four substances below are all on the Mohs Hardness Scale. According to that scale, which one is the hardest of the following?

Which of the following choices is an example of a colloid?

Three of the foods below are acidic. Which one is basic?

It measures the number of cycles per second of sound, electricity, and electromagnetic waves. Which of the following choices names this unit of frequency?

Drag, the air resistance that helps a parachute slow a skydiver’s descent to the ground, is an example of which type of friction?

Three of the following processes are endothermic, meaning they absorb heat. Which one releases heat and is therefore exothermic?

Consider the visible light portion of the electromagnetic spectrum. Which color below has the shortest wavelength?

Match each substance with its level of electrical conductivity.

x. copper 1. conductor

y. silicon 2. semiconductor

z. paper 3. insulator

Which of the following choices is an example of a hinge joint?

Below are four types of plankton. Which one is phytoplankton if it photosynthesizes and zooplankton if it doesn’t?

It is either smooth or rough. Which of the following organelles is a collection of tubes that creates, packages, and transports fats and proteins?

Snakeskin, bird feathers, and insect exoskeletons all shed to allow a new outer layer to form on the animal. Which choice below names this process?

Which one of the following birds is mostly nocturnal?

Which organism below CANNOT regenerate a damaged part of its body?

Unlike other reproductive cells, it is not a gamete. Which of the following choices names a cell that can form a new individual without fusing with another cell?

Which of the following adjectives applies to a cell or organism in which there are more than two paired, or homologous, sets of chromosomes?

Match each part of the pistil with its function.

x. stigma 1. sticky tip that attracts pollen

y. style 2. holds ovules

z. ovary 3. stalk through which the pollen tube grows

Which of the following is the BEST example of commensalism?

Fire and grazing animals maintain it. Which biome below is a tree-studded grassland?

If it occurs where two continental crusts meet, large mountain ranges like the Himalayas form. Subduction zones can also form at which geological boundary below, where two plates collide?

Three of the following energy resources are renewable. Which one is non-renewable?

Which choice below does NOT name a greenhouse gas?

Three of the following choices are large-scale wind-and-pressure systems that rotate over water. Which one is a seasonal wind that blows heavy rains across southern Asia?

They occupy the bottom left corner of the Hertzsprung-Russell diagram. Which class below consists of dense stars with masses similar to the Sun’s but volumes similar to Earth’s?

Match each galaxy with its shape.

x. Cygnus A 1. spiral

y. Large Magellanic Cloud 2. elliptical

z. Milky Way 3. irregular

It can be seen during a total solar eclipse. Which choice below names the outermost part of the Sun’s atmosphere?

Which of the following choices is the phrase for the variable that a scientific experiment tests or measures?

Which statement below is NOT a laboratory safety precaution?

It is especially useful for stirring or heating solutions. What piece of laboratory equipment is pictured here?

Which of the following plants is NOT a legume?

Scientists derive it from two species of red algae. Which choice below names the gelatinous substance that thickens ice cream and solidifies the culture medium in Petri dishes?

Three of the following gymnosperms are conifers. Which one is NOT?

Which insect below undergoes the three stages of incomplete metamorphosis?

Which of the following vertebrate classes is endothermic (warm-blooded)?

Match each animal with its phylum.

x. flatworm 1. Porifera

y. sponge 2. Platyhelminthes

z. jellyfish 3. Cnidaria

In fungi, a threadlike element of the mycelium is called which of the following?

In which environment below would you be MOST likely to find an extremophile bacterium?

Which of the following words names the protein structure that encloses a virus’s nucleic acid?

Which of the following disciplines is an example of an applied science?

It launched in December 2021. Which telescope below detects infrared radiation to gather information about the universe’s formation?

Which of the following women was a U.S. Navy rear admiral who helped invent UNIVAC I, the first commercial electronic computer?

Which product below did John Deere invent in 1836?

It gives red blood cells their color. Which of the following choices is a pigment that carries oxygen to the body’s tissues?

It is an imaging test that requires a special dye containing radioactive tracers. Which procedure below shows abnormal metabolic activity in areas such as the brain, heart, or tumors?

Match each bone’s scientific name with its common name.

x. tibia 1. shin

y. sternum 2. collarbone

z. clavicle 3. breastbone