Photosynthesis
Why do plants photosynthesize?
To create food and energy.
Name the states of matter
Solid, Liquid, and Gas. (Also Plasma, but we have not learned that :) )
What is buoyancy?
An object's ability to float.
What is an ecosystem + 2 examples.
A bunch of possible answers!
What is a litmus test?
A way to detect the pH of a substance.
What are the materials used and materials produced during photosynthesis?
Used: Water, Sunlight, Carbon Dioxide
Produced: Oxygen, Energy
Label these as a physical or chemical change: Rusting metal, Chopping fruit, Burning wood
Chemical. Physical. Chemical
Why do objects fall when released?
Gravity!
What are the 3 kinds of rocks?
Igneous, Sedimentary, Metamorphic
What is the difference between control and experimental groups?
Control groups are your baseline, they provide a reference for your experiment and something to compare to. In experimental groups, you change one variable while holding all else constant.
Two identical plants are measured. One is watered consistently, and the other is not. Which one grows more and why?
The plant watered consistently will grow more because it will have more opportunities/materials to undergo photosynthesis and grow!
Give an example of an Acid and a Base
A bunch of right answers! A: Vinegar, fire ant bites, stomach acid
B: soap, bleach, baking soda
What is density?
A measure of the amount of mass per unit volume of a substance.
What is sustainability?
Sustainability is the ability to maintain and support a process over time. Environmental sustainability is ensuring different life types can coexist productively to sustain future generations. (Various answers accepted)
Describe the Scientific Method
Question, hypothesis, experiments, observations, results, conclusions
Describe the plant growth cycle
Seed > seedling germination > adult plant > pollination > fruit with seeds
What is different about the molecules in solids, liquids, and gases.
Solids are compact with definite shape and volume. Liquids are less compact and have a definite volume but indefinite shape. Gases are scattered everywhere, indefinite shape and volume.
Name a conductor and insulator and what they do. (Hint: Why were the circuit boards made with metal?)
Conductor - allow electrons to travel through them, includes most metals
Insulator - resists the flow of electrons, includes plastics and rubber
Name two differences between a plant and animal cell.
Cell wall, chloroplasts, shape, vacuole.
What is a non-newtonian fluid? + An example.
A non-newtonian fluid or suspension is a substance that does not follow the matter rules we talked about earlier! It can be a solid and a liquid depending on how much force we apply to it. (Oobleck, Slime)
What is the name of the organelle that plants use to photosynthesize?
Chloroplasts are the organelle! Chlorophyll is the name of the green pigment.
Name 3 kinds of chemical reactions
Possible answers: Photosynthesis, combustion, fermentation, rust, baking, digestion, neutrilization
Name 4 different types of energy.
Possible answers: chemical, thermal, radiant, sound waves, nuclear, electric, mechanical, gravitational, kinetic, potential
What gives crystals their shape?
The interactions of the ions in the crystal.
Also accepted: How crystals are formed- Magma (liquid rock) cools slowly ⇒ Crystal
Name a type of bridge.
Possible answers: Suspension bridge, Arch bridge, Truss bridge