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Vocab for the year

science MSL review 7th grade

QuestionAnswer
What is the force that works against motion? friction
Which type of friction produces no heat? static
What do you call any push or pull? force
Velocity includes speed and______. direction
Isaac Newton published the 3 laws of ________. motion
What do all forces come in? pairs
If the objects are not moving then they are ___________. balanced
Which type of energy is stored? potential
Which type of energy is doing work and is in motion? kinetic
The forces that occurs when two substances rub together is ______ friction
Which type of friction occurs when objects move through air or water? fluid
What do you call the force of gravity on an object? weight
A non motorized device that makes work easier. simplemachine
The tendency for an object to be lazy or keep doing what it is doing. inertia
All living things are made of.. cells
The tendency for an animal to control its internal environment and remain stable. homeostasis
The specialized parts of a cell. organelle
The thick, gel, liquid which holds and protects the organelles. cytoplasm
The organelle that is the control center of the cell. nucleus
The organelle that makes the energy for the cell. mitochondria
The cell wall is the stiff, hard structure that surrounds ______ cells. plant
The organelle in plant cells that perform photosynthesis. chloroplast
Single celled organisms usually found in water. protist
What do you call a group of cells that do the same job? tissue
What do you call a group of tissues doing the same job? organ
Which human body system produces blood cells? skeletal
A piece of tissue that connects a bone to a bone. ligament
The slippery, flexible material found at the end of bones. cartilage
The soft, spongy tissue found inside bones. marrow
Muscles you have no control over such as digestion. involuntary
The muscle type found only in the heart. cardiac
The pigment that gives skin its color. melanin
The muscular tube that takes food from the mouth to the stomach. esophagus
The muscular organ where food is mixed with hydrochloric acid. stomach
Fats that are usually a solid at room temperature and can raise cholesterol. saturated
A waxy, fat-like substance that can lead to heart disease, and is only found in animals products. cholesterol
The type of digestion where food is broken into smaller pieces or torn apart. mechanical
After food leaves the pharynx where does it go? esophagus
Which digestive organ produces bile to help break up fats? liver
Which digestive organ produces insulin to help break down starches and carbohydrates? pancreas
The vestigial organ attached to the large intestines. appendix
The flap of tissue that closes over the windpipe to prevent food from going down. epiglottis
The involuntary contractions that push food through the digestive system. peristalsis
The muscular organ that pumps blood through the body. heart
The blood vessel that carries blood away from the heart. artery
The blood vessel that carries blood toward the heart. vein
A flap of tissue that prevents blood from flowing backwards. valve
The largest artery in the body. aorta
The liquid part of blood. plasma
The part of blood that helps it to clot. platelet
The iron containing protein found in red blood cells. hemoglobin
Tiny hairs lining the nasal passage that sweep out things we breathe in. cilia
After air leaves the pharynx where does it go? trachea
Tiny air sacs in the lungs used for gas exchange. alveoli
The passageway for both food and air. pharynx
The organs that filter waste products from the blood. kidneys
The tube that carries urine from the kidney to the bladder. ureter
The opening where urine leaves the body. urethra
The type of reproduction that does not require fertilization. asexual
What is the male gamete? sperm
What is the female gamete? egg
What do you call a fertilized egg? zygote
What do you call a developing human from the 9th week until birth? fetus
The time frame when an egg is released from an ovary. ovulation
The process of physical change when a child's body matures into an adult body. puberty
The type of twins made from two fertilized eggs. fraternal
The type of twins made from one fertilized egg that splits. identical
Which human body system protects us from foreign substances that may enter the body. immune
The main function of this system is to transport nutrients and gases through the body. circulatory
What are the basic building blocks of all organisms? cells
The type of reproduction where offspring are genetically similar to parents. sexual
The type of reproduction which involves only one parent. asexual
Threadlike strands of DNA that carry genetic information. chromosomes
The different versions of a gene. allele
Alleles that are the same. They both are capital or lower case. homozygous
Alleles that are different. One is capital, one is lower case. Also called hybrid. heterozygous
The physical appearances or visible traits of an organism. phenotype
A chart or family tree that tracks the members of a family. pedigree
The genetic makeup or allele combination. genotype
The natural movement of air in the form of a current. wind
A violent, rotating wind that forms over land. tornado
A storm with a violent wind that forms over the ocean. hurricane
What is the main gas found in the atmosphere? nitrogen
The curving global winds formed by the rotation of the Earth. coriolis
The layer of the atmosphere where weather takes place. troposphere
The layer of the atmosphere where "good" ozone is found. stratosphere
The process of water moving from lakes back to the atmosphere. evaporation
A quick moving ribbon of air that moves from west to eat high in the atmosphere. jetstream
Which layer of the atmosphere is found closest to the Earths surface? troposphere
Which step of the water cycle causes clouds to form? condensation
What do you call the average weather over a long period of time? climate
Which step of the water cycle returns fresh water to the Earth? precipitation
Condensation is the change of a gas to a ______. liquid
The study of the atmosphere at a given time and place. weather
In which layer of the atmosphere are jet streams found? troposphere
The process used by plants to release extra water into the atmosphere. transpiration
What does a dry, cold air mass colliding with a moist, warm air mass create? tornado
A natural electrical discharge that can form between clouds or the ground. lightning
Low lying, flat clouds that look like fog. stratus
Plants change ____ energy in to chemical energy. solar
All animal and plant cells are surround by a thin... cellmembrane
In which cell organelle does respiration take place? mitochondria
Where does digestion begin? mouth
Sexual reproduction provides more.... diversity
What are cilia, flagella and pseudopods used for in protists? moving
Which human body system is responsible for removing waste products from the body? excretory
What kind of energy does a stretched rubber band have? potential
When energy changes from one form to another, some of the energy is always lost through ______. heat
The process of cell division used in asexual reproduction. mitosis
The layer of the atmosphere that burns up meteors and shooting stars. mesosphere
The combination of potential and kinetic energy. mechanical
The type of cell division used with SEXUAL reproduction. meiosis
The layer of the atmosphere where meteors burn up. mesosphere
The layer of the atmosphere that contains good ozone. stratosphere
The layer of the atmosphere where aurora's are found. thermosphere
The layer of the atmosphere that is also called space. exosphere
The female gamete. egg
The male gamete. sperm
Each human cell has 46 of these.... chromosomes
Created by: kristie mabry