G1 SEC 1 sci

Question 1

Matter: What are the 3 stages of matter?

Answer 1

Solid, liquid, gas

Question 2

Matter: what is the property of gas?

Answer 2

1. The particles are far apart
2. The particles are randomly arranged
3. the forces of attraction between particles are weak

Question 3

Matter: What r the properties of liquid?

Answer 3

1. The particles slide past each other
2. The particles are disorderly
3. the forces of attraction between particles are strong

Question 4

Matter: What are the properties of solid?

Answer 4

1. The particles are very close together
2. The particles are orderly arranged
3. the forces of attraction between particles are very strong

Question 5

Matter: what is a mixture?

Answer 5

Physical blend of substances that are not chemically bonded together

Question 6

Matter: what is a substance

Answer 6

a combination of 2 or more elements chemically combined.

Question 7

Matter: Qualities of mixtures

Answer 7

1. can separate the substances by physical memes
2. light cannot pass through

Question 8

Matter: Qualities of a substance

Answer 8

1. can only be seperated by chemical means
2. light can pass though

Question 9

Matter: methods of separation

Answer 9

1. Filtration
2. Evaporation to dryness
   3.Separating funnel
3. Fractional distillation
4. Simple distillation
5. Crystallization
   7.chromotography

Question 10

Forces: What is the equation?

Answer 10

F= ma

Question 11

Cells: Name the parts of a generic animal cell

Answer 11

1. Cytoplasm
2. membrane
3. nucleus

Question 12

Cells: what is the function of the membrane?

Answer 12

to transport substances in and out of the cell, and serves as protection for it

Question 13

Cells: What is the function of the nucleus?

Answer 13

to store DNA and serves as the cell’s “control center”

Question 14

Cells: what is the function of the cytoplasm?

Answer 14

to allow cell activities to happen

Question 15

Cells: what are tissues and organs?

Answer 15

Tissues are a group of cells that perform the same function, while an organ is a group of tissues that form the organ

Question 16

Cells: why does the human body have different cells?

Answer 16

the different cells make up various organs that make up the body. different systems and cells serve a different purpose in the human body.