Intro to science
What is the scientific method?
The scientific method is a process used to investigate questions through observation, experimentation, and analysis.
What is a chemical change?
A chemical change produces one or more new substances with different properties.
What is motion?
Motion occurs when an object changes position over time.
What is a cell?
A cell is the basic unit of life that makes up all living organisms.
What are tectonic plates?
Tectonic plates are large pieces of Earth’s crust that move slowly on top of the mantle.
What is a hypothesis?
A hypothesis is a testable prediction based on scientific knowledge or observations.
What is a solution?
A solution is a mixture where one substance dissolves evenly in another substance.
What is the SI unit for length?
The SI unit for length is the metre (m).
How does a red blood cell help the circulatory system?
Red blood cells transport oxygen around the body as part of the circulatory system.
What happens when tectonic plates move?
When tectonic plates move, they can cause earthquakes, volcanoes, and mountain formation.
What is an independent variable?
The independent variable is the factor that is deliberately changed in an experiment.
What is matter?
Matter is anything that has mass and takes up space.
What formula is used to calculate speed?
Speed = Distance / Time
How did microscopes improve our understanding of cells?
Microscopes helped scientists discover cells and develop theories about how living things are organised.
What is the solar system?
The solar system is made up of the Sun and all the objects that orbit around it.
Why is lab safety important?
Lab safety helps prevent accidents, injuries, and damage during scientific investigations.
What is evaporation?
Evaporation is a method used to separate a dissolved solid from a liquid by heating.
What is the difference between distance and displacement?
Distance measures the total path travelled, while displacement measures the direct change in position.
Which part of the cell contains genetic information?
The nucleus contains the genetic information of the cell.
What is the correct order of the planets from the Sun?
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
Why is experimental design important in science?
Experimental design helps ensure investigations are fair, accurate, and reliable.
When is filtration used?
Filtration is used when separating mixtures such as sand and water.
What is net force?
What is net force?
Why are specialised cells important in multicellular organisms?
Specialised cells are important because they perform specific functions needed for survival.
A star is a giant ball of hot gas that produces light and heat energy.