Investigating Science
Biology
Chemistry
Physics
Earth and Space
100

This is a guess or prediction a scientist makes before starting an experiment. What is this called?

What is a hypothesis?

100

This part of the human body pumps blood to all parts of the body. What is it called?

What is the heart?

100

What is the lightest and most abundant element in the universe?

What is hydrogen?

100

What is the force that pulls us to the Earth?

What is gravity?

100

This is the planet we live on. It has land, water, and air. What is this planet called?

What is Earth?

200

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?

200

This process allows plants to make their own food using sunlight. What is this process called?

What is photosynthesis?

200

What does the atomic number on the periodic table stand for?

What is number of protons?

200

How fast we travel is called?

What is speed?

200

This large, bright object in the sky gives light and heat to Earth. What is it?

What is Sun?

300

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?

300

In humans, these structures carry oxygen-rich blood from the heart to the rest of the body. What are they called?

What are arteries?

300

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?

300

What is the type of energy is stored in an object because of its height above the ground?

What is gravitational potential energy?

300

These objects in the sky orbit around the Sun. Earth is one of these. What are they called?

What are planets?

400

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?

400

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?

400

In a chemical reaction, this is the name of the substances that are created as a result. What are these called?

What are products?

400

This is the type of energy an object has because it is moving. What is it called?

What is wavelength?

400

This natural satellite orbits Earth and affects ocean tides. It looks bright in the night sky. What is it called?

What is Moon?

500

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

500

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?

500

This type of bond is formed when atoms share electrons to make a molecule.

What is a covalent bond?

500

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?

500

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?

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