G1 SEC 1 sci Flashcards
Matter: What are the 3 stages of matter?
Solid, liquid, gas
Matter: what is the property of gas?
- The particles are far apart
- The particles are randomly arranged
- the forces of attraction between particles are weak
Matter: What r the properties of liquid?
- The particles slide past each other
- The particles are disorderly
- the forces of attraction between particles are strong
Matter: What are the properties of solid?
- The particles are very close together
- The particles are orderly arranged
- the forces of attraction between particles are very strong
Matter: what is a mixture?
Physical blend of substances that are not chemically bonded together
Matter: what is a substance
a combination of 2 or more elements chemically combined.
Matter: Qualities of mixtures
- can separate the substances by physical memes
- light cannot pass through
Matter: Qualities of a substance
- can only be seperated by chemical means
- light can pass though
Matter: methods of separation
- Filtration
- Evaporation to dryness
3.Separating funnel - Fractional distillation
- Simple distillation
- Crystallization
7.chromotography
Forces: What is the equation?
F= ma
Cells: Name the parts of a generic animal cell
- Cytoplasm
- membrane
- nucleus
Cells: what is the function of the membrane?
to transport substances in and out of the cell, and serves as protection for it
Cells: What is the function of the nucleus?
to store DNA and serves as the cell’s “control center”
Cells: what is the function of the cytoplasm?
to allow cell activities to happen
Cells: what are tissues and organs?
Tissues are a group of cells that perform the same function, while an organ is a group of tissues that form the organ
Cells: why does the human body have different cells?
the different cells make up various organs that make up the body. different systems and cells serve a different purpose in the human body.
