6 Questions
What is the definition of matter?
Anything that has mass and occupies space
What is the characteristic of a solid?
Fixed shape and volume, particles are close together
What is an element?
A substance that cannot be broken down into simpler substances
What is the type of motion that occurs in a straight line?
Linear motion
What is the function of the nucleus in a cell?
To control the growth and development of the cell
What is the process by which plants convert light energy into chemical energy?
Photosynthesis
Study Notes
Physical Sciences
Matter and Its Properties
- Matter: anything that has mass and occupies space
- States of matter: solid, liquid, gas
- Characteristics of matter:
- Solid: fixed shape and volume, particles are close together
- Liquid: takes shape of container, fixed volume, particles are close together
- Gas: takes shape and volume of container, particles are widely spaced
Elements and Compounds
- Element: a substance that cannot be broken down into simpler substances
- Compound: a substance made up of two or more elements
- Mixture: a combination of two or more substances that are not chemically combined
Motion and Forces
- Types of motion:
- Linear motion: movement in a straight line
- Circular motion: movement in a circular path
- Forces:
- Contact force: force exerted by an object in physical contact with another object
- Non-contact force: force exerted by an object without physical contact with another object
- Newton's First Law of Motion: an object at rest will remain at rest, and an object in motion will continue to move with a constant velocity, unless acted upon by an external force
Life Sciences
Cell Structure and Function
- Cell: the basic structural and functional unit of living organisms
- Cell components:
- Cell membrane: outermost layer of the cell
- Cytoplasm: jelly-like substance inside the cell membrane
- Nucleus: control center of the cell
- Cell functions:
- Growth and development
- Reproduction
- Response to stimuli
Photosynthesis
- Photosynthesis: the process by which plants convert light energy into chemical energy
- Steps of photosynthesis:
- Light absorption
- Water absorption
- Carbon dioxide absorption
- Release of oxygen and glucose
Human Body Systems
- Skeletal system: provides support and protection to the body
- Muscular system: helps move the body
- Nervous system: controls and coordinates the body's functions
- Circulatory system: transports oxygen and nutrients to the body's cells
Test your knowledge of the fundamental concepts in Physical Sciences and Life Sciences. Topics include matter, elements, compounds, motion, forces, cell structure, and photosynthesis.
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