Unit 1
True or False
The particles in a solid are packed so tightly, that the particles in fact don't move.
False
In which direction dos heat flow?
From high to low
What is not a characteristic property?
- Density
- Boiling Point
- Mass
- Solubility
Mass
What do we call the variable that the scientist changes?
Dependent Variable
A dead tree is an example of a biotic or abiotic factor?
Biotic
What is the term we use to describe when particles move away from each other?
Expansion
True or False?
When heated the particles in the solid expand causing the solid to melt into a liquid
False
The amount of matter in an object is called what?
Mass
The size shoe a person wears is most likely because of a ?
Genetic Factor
What do we call a species that is natural to its environment?
Native Species
What state of matter has a fixed volume and a no fixed shape?
Liquid
What is the formula for the volume of a regular solid?
length x width x height
Define volume
The amount of space an object takes up
Why did the termites follow the blue and black bic pen?
Attracted to the smell
Define carrying capacity
The maximum number of individuals (organism) a ecosystem can maintain (hold)
What state of matter has a definite shape and a definite volume?
Soild
What is the total mass of the liquids if:
- The mass of the beaker: 25 g
- The mass of liquid 1: 5 g
- The mass of liquid 2: 3 g
- The mass of liquid 3: 2 g
10 g
When water melts it density . . .
a. increases
b. decreases
c. stays the same
c. stays the same
What is the function of a leaf?
It is the site of photosynthesis
All energy in an ecosystem originates from . . . ?
The sun
Which is least likely an indicator of a chemical change?
a. A solid red substance started to form
b. A metal rising and sinking in the beaker
c. A increase in heat
d. A yellow liquid turning green
b. A metal rising and sinking in the beaker
The Law of Conservation of Matter states Matter(mass) cannot be created or destroyed but . . .
Can transfer from one form to the next
What does miscible means . . .
Dissolve
True or False
The stigma is the female part of the flower?
True
What are the 4 characteristics of an invasive species?
1. High reproduction rate
2. outcompete native species
3. No natural predators
4. Easily adaptable