Plants
What four things do plants need to grow?
sunlight, water, air, and soil
What is density?
a measurement of how much mass is in a certain volume
how tightly packed an object is
Static electricity is a kind of electricity that
stays still in one place
Energy is the ability to
do work or cause change.
If a liquid has a lot of hydrogen ions, then it is a(n)
an acid
Name two ways plants are important. We discussed 4
- provides us oxygen
- main food source
- shelter for animals
- keep the air clean
What is the density of water? The unit is g/cm³
1 g/cm³
A lamp turns electrical energy to
light + heat energy
What are the two types of circuits?
open and closed
If it has a lot of hydroxide ions, then it is a(n)
a base.
Plants make their own food in a process called
Photosynthesis
What is the formula for density?
Mass/Volume
Atoms consist of:
Protons (+)
Neutrons (o)
Electrons (-)
What are Insulators? name two types
Block electricity from flowing and protect from electric shock
Rubber
Plastic
Wood
Glass
Name three properties of an acid.
Taste sour
Watery feeling
pH level below 7
Turn blue litmus paper red
React with metals and carbonates to make bubbles
Bees, butterflies, birds are all examples of
Pollinators
What liquid is more dense than water and what liquid is less dense than water?
Honey = more
Oil - less
Objects with the same static charge __________ each other
repel
What are Conductors? Name two three types
Let electricity flow easily and used in wires
Metal (copper, aluminum)
Water (especially with salt)
Graphite (pencil lead)
Name three properties of a base
Taste bitter
Feels slippery
pH level above 7
Turn red litmus paper blue
Does not react with metals like acids do
What is stage 2 of the plant cycle?
Bonus: 100 extra points if you can describe the stage
Germination - when the root pushes down into the soil and a tiny shoot grows upward to the light
Hot air
How does static electricity build up?
When two objects rub together, electrons can jump from one to another
This builds up extra positive or negative charge, causing static electricity
What is an electric circuit?
a path for electricity to flow.
What is the neutralization reaction formula?
Acid + Base → Water + Salt