Matter
What are the three types of matter?
Solid, liquid, and gas.
What are the main body systems?
The Nervous, Digestive, Respiratory, Circulatory and Musculoskeletal systems
What is matter?
Matter is everything that takes up space and has volume.
What is the respiratory system and what does it do?
The respiratory system brings fresh air and oxygen into your body and gets rid of carbon dioxide when you breathe
Give three examples of solids, liquids, and gases.
solids. ex-brick, table, and chare. liquids. ex-water, juice, and milk. gases. ex-oxygen, carbon dioxide, and smoke.
What is it called when a solid-liquid and a liquid-solid?
Solid-liquid is called Melting and liquid-solid is called Freezing.
What systems are most important in your body? (name 2)
Nervous System and Respiratory System
What are chemical and physical changes? (name 2)
Chemical changes are changes are irrteversable and Physical changes are reversable. EX. Chemicle rotting, and rusting. Physical melting, and freezing.
How do you digest your food?
ingestion (eating), digestion (breaking down), absorption (taking in nutrients), and elimination (removing waste)
What are properties?
Properties can be mesoured trough observation (5 sences). the two properties are chemacle and physical.
What are heat of states of matter?
Absorbing heat- liquid-solid, gas-liquid, and gas-solid.
Releasing heat- liquid-gas, solid-liquid, and solid-gas.
What do your intestines do?
Your intestines are responsible for digestion, nutrient absorption, and immune defense.
What is different in solids than liquids, liquids and solids, and what is the same?
solids are tightly pact together and do not keep the shape of a container. liquids are loose and can move past each other and they keep the shape of a container. they both are atoms, have voume, and is matter.
Name what 2 of the body system do?
Nervous - command center
Respiratory - supplies oxygen and removes co2
Digestive - breakdown food into nutrients
Musculoskeletal - provides structure and movement
Circulatory - blood flow throughout the body
What is it called when a gas-liquid and a liquid-gas?
gas-liquid=condensation
liquid-gas=evaporation
How do you recognize if something is going through a chemical change?
Some signs are the release of gas bubbles, a change in color, and the absorption or release of heat or light.
How many organs are in the nervous system and what do they do?
The nervous system has 3 organs (brain, nerves and spinal cord) and they are responsible for receiving information and carrying throughout your body. Your bodies command center.
What is it called when a solid-gas and gas-solid?
solid-gas is called sublamation and gas-solid is called deposition
What does the circulatory system do?
The circulatory system helps deliver oxygen and nutrients cells throughout the body while removing carbon dioxide. It also helps to regulate body temperature and protect the body against diseases.
What changes does a balloon go through after being deflated?
Balloon volume decreases and the density increases
What happens when matter realeases thermal energy?
It's particles slow down and draw closer together.
How many bones are in the human body; as a baby and as an adult?
Baby - 275-300
Adult - 206
When termal energy is added to a liquid it moves faster and faster untill it reaches ____ point.
Boilling
What do your muscles and joints do?
Muscles generate the force to move your body, while joints connect your bones to help pivot them for smooth, controlled motion.
What is the definition of vaporization, exothermic and endothermic?
Vaporization - when a substance converts from a liquid or solid state into a gas or vapor
Exothermic - when energy is released into its surroundings, typically in the form of heat
Endothermic - when a chemical or physical change absorbs thermal energy (heat)