Unit 3
What is the charge of an electron? (positive, negative or neutral?)
Negative! It's MAD it wasn't invited inside the nucleus
What is the difference between an element and a compound?
An element is found on the periodic table, a compound is two or more elements together.
What ist he job of the Nucleus in a cell?
The "brain" of the cell
Which organs belong to the Nervous System?
A. Bones, Connective Tissues
B. Heart, Veins
C. Esophagus, Stomach
D. Brain, Spinal Cord, Nerves
D. Brain, Spinal Cord, Nerves
Vibrating/Little Movement
Using your Periodic Table, what is the atomic number for Sodium (Na)?
11
What is the difference between and physical and chemical change?
A physical change doesn't change what the substance it. A chemical change makes something new.
What does Ingestion mean?
When an animal eats food.
Which organs belong to the Skeletal System?
A. Bones, Connective Tissues
B. Heart, Veins
C. Esophagus, Stomach
D. Brain, Spinal Cord, Nerves
A. Bones, Connective Tissues
Does a gas have a DEFINITE volume?
Using your Periodic Table, what is the Atomic Mass/Mass Number for Nitrogen (N)?
14.0067
Element, Compound or Mixture?
Spaghetti and Meatballs
Mixture!
Give an example of a Heterotroph and an Autotroph.
Heterotroph: Humans, Animals (cannot make their own food)
Autotroph: Plants, Algae (can make their own food)
Which organs belong to the Circulatory System?
A. Bones, Connective Tissues
B. Heart, Veins
C. Esophagus, Stomach
D. Brain, Spinal Cord, Nerves
B. Heart, Veins
Melting is a change from a ____________ to a ______________.
Solid to a Liquid
Is it a metal, nonmental or metalloid?
They have luster (shiny)
Metal
Physical or Chemical Change?
Blow drying your wet hair
Physical! It's still hair!
What are the differences between Animal and Plant cells? (give one!)
No Chloroplasts/Chloroplasts
No Cell Wall/Cell Wall
No shape/Rectangular and Rigid shape
Which organs belong to the Digestive System?
A. Bones, Connective Tissues
B. Heart, Veins
C. Esophagus, Stomach
D. Brain, Spinal Cord, Nerves
C. Esophagus, Stomach
Fill in the blank:
Sublimation is a change from a ____________ to a ______________.
Solid to a Gas
What is in the nucleus of an atom?
Protons and Neutrons
Physical or Chemical Change?
Fireworks.
Chemical! You cannot get the fireworks back.
-Shivering when cold
-Sweating when hot
Give an example of a Stimulus and Response.
Tickling someone...they laugh
Jumping out of a closet...they yell
Touching a burning stove...removes hand
Fill in the blank:
Condensation is a change from a ____________ to a ______________.
Gas to a Liquid