Vocab
Substances & Properties
Conservation of Mass & Chemical Reactions
Food Webs & Ecosystems
Photosynthesis and Respiration
100
Atom
The smallest particle of an element; made of electrons, protons, and neutrons
100
List examples of physical properties. How can you measure that property?
Physical property is density and we can measure it by mass divided by volume mass-scale and volume is l x w x h.
100
What is a chemical reaction?
A chemical reaction is a process where substances change into different substances
100
Which organism is always found at the base of a food web?
Producer
100
What role does ATP play in the process?
The role that ATP play in the process is it is energy.
200
Chemical Equation
Chemical formulas and symbols written to represent a reaction
200
What happens to the atoms involved in a chemical reaction?
They pick up speed,slow down, but it all depend on the type of reaction
200
What happens to the molecules of substances during a chemical reaction?
The molecules rearranged themselves into new substances.
200
Decomposers help recycle matter by
Breaking down dead organisms
200
What are the reactants and products of cellular respiration?
The reactants for cellular respiration is glucose and oxygen and the products are carbon dioxide,water, and ATP.
300
Chemical Property
A characteristic that can be observed or measured only when atoms rearrange during a chemical chang
300
Compare and contrast physical and chemical properties of matter.
Physical properties we can always see them, and a chemical properties is a chemical reaction has to happen for us to see them.
300
When baking soda reacts with vinegar, what evidence suggests that a chemical reaction has occurred?
When baking soda reacts with vinegar there is evidence that suggests a chemical reaction has occurred as the temperature changed and gas bubbles have formed.
300
What do producers use to make their own food.
Sunlight, water, and oxygen
300
What is the role of mitochondria in cellular respiration?
The role of the mitochondria is the location of where it happens.
400
Chemical Reaction
The process by which one or more substances change to produce one or more different substances
400
Students are challenged to duplicate MREs in the science classroom using chemical reactions. The final product must be safe and light.
Number 4
400
Why is it important to compare properties before and after a reaction to determine if a chemical reaction has occurred?
If we don't know the properties before then we can’t determine if a chemical reaction has occurred.
400
Why do animals rely on plants for survival?
Animals rely on plants for survival is they have glucose so which then get broken down into energy in cellular respiration.
400
How does cellular respiration demonstrate the conservation of matter?
Same types of atoms and the same number of atoms in products and reactants.
500
Physical Property
A characteristic that can be observed or measured without changing the substance
500
What is density? Is it a chemical or physical property?
Density is the amount of mass per volume and it is a physical property.
500
How can you tell that frying an egg involves a chemical reaction?
Their was a color change a temperature change and gas.
500
Who is at the top of a food web
Tertiary consumer or Secondary consumer
500
How do the processes of photosynthesis and cellular respiration work together in the carbon cycle?
Carbon enters photosynthesis in CO2 molecules and breaks down to rearrange into glucose.Glucose enter into cellular respiration then breaks down into and rearrange into CO2.The cycle restarts.