Matter and Chemistry
What do we call anything that takes up space and has mass?
Matter
What is the main cause of seasons on Earth?
The tilt of Earth’s axis as it orbits the Sun
What part of a cell is like the “control center” that holds the DNA?
The nucleus
What is the main source of energy that drives Earth’s weather?
The Sun
What is the change of state from liquid to gas called?
Evaporation
What are the three main types of rocks?
Igneous, sedimentary, and metamorphic
What is the green pigment in plants that helps them make food from sunlight?
Chlorophyll
What do we call a large system of stars, dust, and gas held together by gravity?
A galaxy
What is the smallest part of an element that still has the properties of that element?
An atom
What natural process moves sediment from one place to another?
Erosion
What type of reproduction requires only one parent and makes offspring that are identical?
Asexual reproduction
What is the difference between rotation and revolution?
Rotation is spinning on an axis. Revolution is orbiting around another object
Which particles in an atom have a negative charge?
Electrons
What do we call molten rock beneath Earth’s surface?
What are the basic building blocks of the human body called?
Cells
What bright object in the night sky changes shape as it orbits Earth?
The Moon
What element starting with the letter U is known for its radioactivity?
Uranium
What layer of Earth is made of liquid metal and creates Earth’s magnetic field?
The outer core
What process do plants use to make their own food using sunlight, water, and carbon dioxide?
Photosynthesis
Why do we always see the same side of the Moon from Earth?
Because the Moon rotates once on its axis in the same time it orbits Earth (synchronous rotation)