This is a guess or prediction a scientist makes before starting an experiment. What is this called?
What is a hypothesis?
This part of the human body pumps blood to all parts of the body. What is it called?
What is the heart?
What is the lightest and most abundant element in the universe?
What is hydrogen?
What is the force that pulls us to the Earth?
What is gravity?
This is the planet we live on. It has land, water, and air. What is this planet called?
What is Earth?
In an experiment, this is the part that a scientist changes on purpose to see what happens. What is it called?
What is the independent variable?
This process allows plants to make their own food using sunlight. What is this process called?
What is photosynthesis?
What does the atomic number on the periodic table stand for?
What is number of protons?
How fast we travel is called?
What is speed?
This large, bright object in the sky gives light and heat to Earth. What is it?
What is Sun?
This scientific theory explains how living things change over a long time to adapt to their environment. It was introduced by Charles Darwin. What is this theory called?
What is the theory of evolution?
In humans, these structures carry oxygen-rich blood from the heart to the rest of the body. What are they called?
What are arteries?
When two substances combine to form a new substance, it is called this type of reaction. What is this reaction?
What is a chemical reaction?
What is the type of energy is stored in an object because of its height above the ground?
What is gravitational potential energy?
These objects in the sky orbit around the Sun. Earth is one of these. What are they called?
What are planets?
This scientific theory says that our universe started with a big explosion and has been expanding ever since. What is this theory called?
What is the Big Bang Theory?
This is the basic unit of life in all living things. It’s the smallest part that can be alive. What is it?
What is a cell?
In a chemical reaction, this is the name of the substances that are created as a result. What are these called?
What are products?
This is the type of energy an object has because it is moving. What is it called?
What is wavelength?
This natural satellite orbits Earth and affects ocean tides. It looks bright in the night sky. What is it called?
What is Moon?
This is the process of carefully collecting information during experiments to understand natural events. Scientists use this to find patterns and make conclusions. What is this process called?
What is observation
This type of cell division creates two identical cells from one cell. It helps our body grow and repair. What is it called?
What is mitosis?
This type of bond is formed when atoms share electrons to make a molecule.
What is a covalent bond?
This is the distance from one wave peak to the next wave peak. It is usually measured in meters. What is this distance called?
What is wavelength?
This is the name of our galaxy, where our solar system is located. It looks like a bright band of stars in the night sky. What is it called?
What is Milky way?