Hard Crossword Puzzles

Hard Crosswords

These crosswords are intended to be pretty hard to complete. They are made up of more than 20 words of any size. To view or print a hard crossword puzzle click on its title.

Title	Subject	Instructions / Description	Sample Puzzle Hints
Behaviorism	Society		_______ reinforcement is a positive stimulus to reinforce a behavior. occurs after a behavior and reduces the likelihood of that behavior occurring again in the future. range of actions made by organisms in response to their environment. Genetics that, according to Skinner, don't influence behavior. Theory that human and animal behavior can be explained by conditioning without regard to thought.
Behaviour Terminology	Mental Health		produced, occurring, or existing within a species or between individuals of a single species. attributing human characteristics or emotions to animals . is any social behaviour related to fighting. the observer records the occurrence and duration of every behaviour. is any grooming behaviour performed by an animal on its own body.
Behind Enemy Lines	Entertainment		unreasonable. A historical region of france. American poet. A row or line of grass. Italian financier and statesman.
Being Presbyterian	Religion		At least 3 presbyteries in a geographic region . A group of Presbyterian churches in the same geographic area (e.g. Presbytery of Middle Tennessee) . The chief end of humankind is to _______ God forever (3 words). The highest governing body of the Presbyterian Church is the General ____ . The local governing body of a Presbyterian Church .
Belgium Crossword	World Geography		language spoken in Brussels. 100m high site where there is a panoramic view over the Battlefield. one of Europe's most perfectly preserved Gothic-Baroque squares found in Brussels. a statue/ fountain of a boy cherubically relieving himself; found in Brussels. circular, naturalistic painting of the battle on a canvas with a 110m circumference.
Belle's Poetry	Literature and Writing	Match the words with the correct definitions.	describes on thing as if it were something else. language that is not meant to be taken literally. gives human qualities to a nonhuman subject. the use of words that imitate sounds like splat, hiss, and gurgle. a line or group of lines in a poem that is repeated at regular intervals.
Ben and Me	Books		not respected or trusted by most people; having a bad reputation. not able to think or speak clearly especially because of fever or illness. a pair of metal supports that hold the wood in a fireplace. state of being of a personal or private nature. a person who gives money and support to an artist or organization.
BENEFITS AND DANGERS OF ELECTRICAL ENERGY	Science		a multiple outlet surge,device has its own circuit breaker.. converts electrical energy into other forms like light, sound, thermal energy, mechanical energy and others.. the rate at which an electrical appliance converts electrical energy into other forms.. unit of power. too much appliances that can cause too much heat can damage appliances and may even cause fire..
Benfica	Sports		First appointed club President . Portuguese parish, located in the municpality of Lisbon . Home field of the Womens SL Benfica team . Benfica is in the Guinness Book of World Records for what?. Current Head Coach.
Beowulf	Literature and Writing		the type of building Beowulf found while fighting Grendel's mother. Beowulf's lord and uncle. Herot is described as this. number of years Grendel terrorizes Herot. Wextan's son.
Beowulf	Literature and Writing	Fill out all boxes with words matching the definitions from the poem Beowulf	Gate keeper for Hrothgar . A movable wooden board used as a ramp to board or disembark from a ship or boat. Members of a legendary royal family of Danes or their people . Beowulf's childhood friend. A man who is one of a person's blood relations.
Beowulf	Books	By Megan Schrage	The dragon-slayer. What Beowulf gives orders to construct after his death. Beowulf's father. .... goes to Beowulf's aid during his last fight. The most famous Danish warrior king.
Beowulf's Epic Crossword Puzzle	Literature and Writing		What saved Beowulf from Grendel's mothers claws?. Who was the king before Beowulf?. What is Beowulf's last wish?. Who is the person that came to help Beowulf in the last battle?. Who did Beowulf face in the second story?.
Bertha von Suttner	Literature and Writing		What was the name of her husband?. Lay Down Your Arms is a ... Bertha wrote. Which country was she living in?. What was she working for . She warned about....
Bible	Bible		What does 'Torah' mean?. The historical books describe the breakup of what nation?. In Israel's slavery of Egypt, the Israelites escape under the leadership of whom?. What book was written to show that God had revealed true wisdom to Israel? The book of _______. The five books Pantateuch are Genesis, Exodus, Leviticus, Numbers, and _______.
Bible Geography	Bible	Locations Mentioned in Matthew through Revelation	A city where Christ's disciples were first called 'Christians'. A city in Galilee. A road where Jesus met two travelers. The city of David. Name of the brook flowing between Jerusalem and Gethsemane.
bible Trivia 2	Bible		Jesus was crowned with one of these. How we communicate with God . Jesus resurrected him. Satan covered him in boils. Bible book after Matthew, mark,Luke and John .
Biblical Facts	Bible		Blinded on the road to Damascus. Swallowed by a whale. Stoned to death. Raised from the dead. Number of commandments.
Bio Medical Engineers	Business and Work		They find ways to cure sickness. is in charge of planning, directing, evaluating, and coordinating zoo operations. are scientists or clinicians who specialise in the field of Immunology. a medical practitioner qualified to practice surgery.. a person who is professionally qualified to prepare and dispense medicinal drugs..
Biodiversity	Science		concentrates of a harmful substance increase in organism at higher trophic levels in a food chain or food web . plants and animals that have migrated to places where they are not native . includes the variety of habitats, communities, and ecological processes in the living world. occurs when a species disaapears from all or part of its range . the sum of the total of the genetically based variety of habitats.
Biodiversity	Other		gradual process of a species becoming extinct.. any natural resource available in limited amounts or replaced extremely slowly by natural processes. . use of resources at a rate that they can be replaced or recycled. endemic species: species found only in one specific geographic area. . a large-scale dying out of a large percentage of all living organisms in an area within a short time.. any resource replaced by natural processes more quickly than it is consumed. .
Biodiversity	Biology		Law designed to protect species in danger of extinction; passed by U.S. Congress in 1973. occurs when natural habitats are no longer able to support the species present. Transition from one biotic community to another after a disturbance. the process during which a large expanse of habitat is transformed into a number of smaller patches. Areas of high species diversity that are most at risk.
Biodiversity	Science	Biology	a type of cell with a membrane-enclosed nucleus and membrane-enclosed organelles.. the science of determining evolutionary relationships among organisms.. describing the group of bacteria that have a cell wall that is structurally less complex and contains more peptidoglycan than the cell wall of gram-negative bacteria.. a staining method that distinguishes between two different kinds of bacterial cell walls; may be used to help determine medical response to an infection. A way to determine a type of cell.. as applied to molecular systematics, a principle that states that when considering multiple phylogenetic hypotheses, one should take into account the hypothesis that reflects the most likely sequence of evolutionary events, given certain rules about .
Biological Control Systems in Animals	Animals	Animal Anatomy and Physiology.	These are chemical substances secreted by special glands, that regulates the activity of certain cells and organs.. Part of the nervous system contains the brain and spinal cord. . The maintenance of 'steady state conditions' in the body.. Biological control system composed of a network of nerve cells and fibres that transmit nerve impulses around the body. . Biological control system composed of a collection of glands that secrete hormones into the circulatory system..
BIOLOGY	Science		organism that splits by binary fission. group of organized cells. the basic building blocks. fat or oil. mass divided by volume.
Biology	Biology	Fill in all the blanks!	One of two prokaryotic domains of life, the other being Archaea.. A type of cell that has a membrane-enclosed nucleus and other membrane-enclosed organelles. All organisms except bacteria and archaea are composed of eukaryotic cells.. An integrated group of cells with a common function, structure, or both. An organism that makes organic food molecules from C02, H20, and other inorganic raw materials: a plant, algae, or autotrophic bacterium. . A tentative explanation a scientist proposes for a specific phenomenon that has been observed.
Biology	Science		Where am I from?. the combination of DNA and proteins that make up the contents of the nucleus of a cell.. has no single function and is instead the site of a wide variety of cell processes. contains enzymes that process fats. make proteins.
Biology	Biology		Distinctive fossil used to compare relative ages of fossils. Someone who studies fossils. 2 species evolve in response to changes in each other over time. Formation of new and distinct species. Age of a fossil is determined by finding out absolute age of surrounding rock.
Biology	Biology		a type of eukaryotic organism kingdom that can be like a plant cell or an animal cell but does not fit in the animal or fungi kingdoms . the thread like structures that come out of fungi cells, they can contain many nucleui . food grown without pesticides or other chemicals . a hole filled with sap in a plant cell . the part of a cell where respiration takes place .
Biology	Science		When chromosones line up in middle. Building blocks of proteins. Particle of atom that has no charge. When a cell is getting rid of particles. Bond formed when atoms share particles.
Biology	Biology		Membrane around the cell. A stack of sacs that prepare molecules for use eleswhere. Single membrane organelle containing enzymes. A network of filaments in the cell. Organelle responsible for photosynthesis.
Biology	Science		Cell organelle that stores materials such as water, salts, proteins, and carbohydrates.. Atom of the element that has a number of nuetrons different from that of other atoms of the same element.. A place where all the organisms live.. Attractin between molecules of the same substance.. Macromolucule made mainly from carbon and hydrogen atoms, includes fats, oils, and waxes..
Biology	Science		Don'e need air. The 90% remaining chemical energy that if located in the first stage of Cellular Respiration 'glycolysis'. The innermost compartment of the mitchondrion. The amount of energy needed to raise a temperature 1 gram of water 1 degree Celsius. Requires air.
Biology	Biology	Life on Earth: Plants	an early stage development for an organism. provides food for the embryo. a reproduction system that switches back and forth. a process of change between two organisms. primary plant root.
Biology	Science		Stacks of flat membranous sacs that modify, store, and route products of the ER. Atom's central core; contains protons & neutrons; chromosome containing organelle of eukaryotic cells. Consturucted in nucleus' functions as the site of protein synthesis in cytoplasm & consists of rRNA & proteien molecules. HYdrolytic enzyme that's enclosed by a membrane & found in the cytoplasm of eukaryotic cells. Active in sysnthesis of ribosomes, specialized structure in nucleus & formed from vaiors chromosomes.
Biology	Biology		the loss or removal of nitrogen or nitrogen compounds; specifically : reduction of nitrates or nitrites commonly by bacteria (as in soil) that usually results in the escape of nitrogen into the air.. resources are environmental conditions that limit the growth, abundance, or distribution of an organism or a population of organisms in an ecosystem. . rainfall made sufficiently acidic by atmospheric pollution that it causes environmental harm, typically to forests and lakes. The main cause is the industrial burning of coal and other fossil fuels, the waste gases from which contain sulfur and nitro. the chemical processes by which atmospheric nitrogen is assimilated into organic compounds, especially by certain microorganisms as part of the nitrogen cycle.. the mass of living biological organisms in a given area or ecosystem at a given time. .
Biology	Biology		the variety of life on Earth.. the number of organisms of the same species that live in a particular geographic area . the parts of an experiment that don't change. the process in which organisms become better adapted to their environment in order to survive. a well-substantiated explanation of an aspect of the natural world.
Biology	Science		Captures energy from sunlight and converts it into chemical energy. The fluid portion of the chloroplast and is outside the thylakoids. Uses energy from light to produce ATP and NADPH. The rotation of an organelle or process. Is located in the chloroplast and is arranged in stacks.
Biology	Biology		a slight attraction that develops between the oppositely charged regions of nearby molecules. atom of an element that has the same number of neutrons different from that of other atom of the same element. attraction between molecules of the same substance. weak acid or base that can react with strong acids or base to help prevent sharp, sudden changes in pH. indicated the concentration of H+ ions in a solution.
Biology	Science		3 types, the spatial distribution within a population. The movement of individuals out of a population. The beginning of animal domestication and cultivating certain crops. How long an individual is expected to live. Mating with relatives.
Biology	Science		Someone who studies the heart. Kind and helpful. Someone who cuts hair and trims or shaves beards. An instrument used to measure atmospheric pressure. Something that stops a poison from working.
Biology	Biology		Fermentation without oxygen. The supportive tissue of an epthelial organ, tumor, gonad, etc. Organisms that obrain food by consuming other living things. The first set of reactions in photosynthesis. The sequence of reactions by which most living cells generate energy during the process of aerobic respiration.
Biology	Biology		the change a carrier protein undergoes. contains the pink colouring in the beetroot. this is the colour in the cell. proteins contained within the plasma membrane. a type of intergral protein.
Biology A&P	Biology		air filled organs located on either side of the chest. a hormones gland that plays a major role in metabolism. produces enzymes that are released to help with digestion. long continuous tube running from the stomach to the anus. converge to form veins.
Biology Cells	Biology		a type of endocytosis in which the cell engulfs large particles. the layer of phoso-lipids surrounding the inner parts of the cell. disease-causing strands of DNA or RNA that are surrounded by protein coats. release of substance out of a cell by the fusion of a vesicles with the membrane. allows molecules that cannot directly cross the phospholipid bolster to diffuse through transport proteins in the membrane.
Biology Habitats and Adaptations	Biology		Above ground roots that a mangrove uses to store oxygen.. Many plants living in this type of habitat have waxy leaves to reduce water loss.. Due to poor light absorption, some marine mammals have evolved to use this…. Organisms that live predominantly in trees.. A deep winter sleep..
biology vocab	Science		study of life. an eplanation. a set of values. a feild of study for legal purposes. orderly.
Biology Vocabulary	Science		branch of biology that studies heredity. a family history that shows how a trait is inherited. the alleles of a particular gene are different. diagram that predicts the outcome of a genetic cross. passing of traits from parents to offspring.
Biomass	Biology		a way biomass can be used to create energy using heat. a gas that decaying biomass produces. the act of collecting a crop once it is grown. large tub used for heating water to produce steam which helps produce energy. can't be created as quickly as it is used.
Biomass Energy	Physics		A way biomass can be used to create energy using heat. Odorless gas. Large tub used for heating water to produce steam which helps produce energy . By product of milling timber. Corn is used to make.
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