chemical and physical
electricity and magnetism
Constructive and Destructive processes
Cells and microorganisms
Inherited and Classification
100
What is a physical change? Give two examples.
what is:Ice melting into water, shredding a piece of paper.
100
This force can attract objects made of iron.nick or cobalt without touching them
What is: Magnetism
Magnetism is a force that can attract or repel certain materials.
100
This type of process builds up earth's surface like when lava cools and forms new land
What is a constructive process
A constructive process refers to a method or approach where something is actively built, developed, or improved. It can apply to various fields, including education, psychology, and even problem-solving.
100
This is the basic unit of life that makes up all living things
what is a cell
A cell is the basic structural and functional unit of life. All living organisms, from tiny bacteria to complex humans, are made up of cells.
100
Traits like eye color or dimples that are passed down from parents to offspring
what are inherited traits
nherited traits are characteristics passed down from parents to their offspring through genes. They determine physical features like eye color, hair texture, and height, as well as other traits such as predisposition to certain diseases or even behaviors.
200
Compare and contrast mixing sand with water versus mixing salt with water. How do their physical changes differ?
what is: when sand is mixed with water, it does not dissolve; instead, it settles at the bottom. This is a suspension. When salt is mixed with water, it dissolves completely, forming a solution.
200
This type of electricity flows through wires to power devices like lights and TVs
What is: current electricity
It powers things like light, computers and TVs by moving electrons through wires usually from a power source like battery or an outlet
200
This destructive process happens when wind or water carries away soil or rock
what is erosion
Erosion is the process by which natural forces like water, wind, ice, and gravity wear away and transport soil, rock, or other materials from one location to another. It plays a crucial role in shaping landscapes over time.
200
Tiny living things like bacteria and fungi that can only be seen with a microscope
what are microorganisms
Microorganisms are tiny living organisms that are too small to be seen with the naked eye. They include bacteria, viruses, fungi, protozoa, and algae. Despite their microscopic size, microorganisms play a crucial role in various ecosystems—they help decompose organic matter, support digestion in animals, and even contribute to the production of food and medicine.
200
A learned behavior like riding a bike is not this type of trait
What is an inherited trait
An inherited trait is a characteristic that is passed from parents to their offspring through genes. These traits are encoded in DNA and can affect physical features, behaviors, and even susceptibility to certain health conditions. Examples include eye color, hair texture, height, and even some personality traits.
300
Design an experiment to test how temperature affects the rate at which salt dissolves in water. What variables would you control, and how would you measure your results?
what is: Prepare three beakers with the same amount of water at different temperatures (cold, room temperature, hot). Add an equal amount of salt to each and stir. Measure the time it takes for the salt to fully dissolve.
300
This simple device uses a coil of wire and a magnetic field to produce electricity
What is: a generator
A device that converts mechanical energy into electrical energy
300
This process can be both constructive and destructive it shakes the ground and can from mountains or causes cracks
what is an earthquake
A constructive process refers to a method or approach where something is actively built, developed, or improved. It can apply to various fields, including education, psychology, and even problem-solving.
300
this tool is used by scientists to look at cells and tiny organisms
what is a microscope
A microscope is an optical instrument that magnifies tiny objects, allowing us to see details that would otherwise be invisible to the naked eye. It consists of lenses that bend light to make specimens appear larger and more detailed.
300
This is the system scientists use to group living things based on shared traits
What is classification
Classification is the process of organizing and categorizing things based on shared characteristics. It helps scientists, researchers, and everyday people make sense of complex information by grouping similar items together.
400
Develop a step-by-step procedure for separating a mixture containing sand, salt, and iron filings. Justify why you chose each separation method and how it demonstrates physical changes.
What is:
Step 1: Use a magnet to remove the iron filings (magnetism).
Step 2: Add water to the sand and salt mixture. The salt will dissolve while the sand remains.
Step 3: Use filtration to separate the sand from the saltwater solution.
Step 4: Evaporate the water to retrieve the salt.
400
Rubbing a balloon your hair can create this type of electricity
what is: static electricity
The result of an imbalance of positive and negative charges on an object's suface
400
This slow destructive process breaks down rock into smaller pieces over time
what is weathering
Weathering is the process of breaking down rocks, minerals, and soils through natural forces like water, wind, temperature changes, and biological activity. Unlike erosion, which involves the movement of materials, weathering occurs in place.
400
This single-celled microorganism can make people sick but some are helpful too
What is bacteria
Bacteria are tiny, single-celled organisms that exist almost everywhere on Earth—from deep in the ocean to inside your body! They belong to a group of microorganisms known as prokaryotes, meaning they lack a nucleus and have a simpler cellular structure compared to other organisms.
400
Animals with backbones are called this
What are vertebrates
Vertebrates are animals that have a backbone or spinal column. This group includes mammals, birds, reptiles, amphibians, and fish. They have well-developed nervous systems, and their skeletal structure helps support their bodies and protect vital organs.
500
This Physical change happens when you snap a stick in half, but the material stays the same.
What is Breaking?
Breaking is a physical change where an object is separated into pieces, but its material stays the same. For example, breaking a pencil or snapping a stick changes its shape or size, but it is still made of the same material -it hasn't turned into something new.
500
This temporary magnet is created when electric current flows through a wire wrapped around a metal core
what is an electromagnet
A magnet whose magnetic fields is created by an electric current
500
This constructive process happens when sand sediment is dropped and forms new land like a delta
What is deposition
Deposition is the process where sediments, soil, and rocks are transported by natural forces like wind, water, or ice and then dropped in a new location. This process helps shape landscapes, forming features like sand dunes, river deltas, and beaches.
500
These plant cells use sunlight to make their own food through a process called photosynthesis
what are chloroplasts
Chloroplasts are tiny, green organelles found in the cells of plants and algae. They're like little power stations that convert sunlight into energy through photosynthesis—the process plants use to make their own food. Inside chloroplasts, a green pigment called chlorophyll absorbs sunlight and helps transform carbon dioxide and water into glucose and oxygen.
500
This group in classification includes organisms that are very alike and can reproduce
what is a species
A species is a group of living organisms that share similar characteristics and can reproduce to produce offspring. It is the most specific level in biological classification. Members of the same species typically have common traits, behaviors, and genetic makeup.