This bone connects the hip joint to the knee joint. It is the longest bone in the human body.
What is the Femur Bones?
This object is a star at the center of our solar system. It gives Earth light and heat and allows plants and animals to survive.
What is the Sun?
This is the natural satellite that orbits Earth.
What is the Moon?
With the symbol H, this is the lightest and most abundant element in the universe.
What is Hydrogen?
Every point on this shape is the same distance from a central point. The distance from the center to the edge is called the radius.
What is a Circle?
This liquid waste is produced when the kidneys filter the blood. It travels through the ureters and is temporarily stored in an organ before leaving the body through the urethra.
What is Urine?
This telescope orbits Earth and takes pictures of space
What is the Hubble Space Telescope?
The only layer in the Earth that is liquid
What is the outer core of the Earth?
This is the name for the center of an atom, containing both protons and neutrons.
What is the Nucleus?
This device consists of a rigid bar that rotates around a fixed point called a fulcrum. Examples include seesaws and crowbars
What is a Lever?
During this process green plants use sunlight, water, and carbon dioxide to make their own food. They also release oxygen into the air.
What is Photosynthesis?
This is the farthest planet from the Sun
What is Neptune?
Earth’s surface is divided into moving sections that interact at boundaries, forming mountains, volcanoes, and earthquakes.
What are tectonic plates?
Particles in this state move freely and spread to fill any container. Unlike solids or liquids, substances in this state are easily compressed.
What is Gas?
These devices remove heat from inside a sealed compartment using a refrigeration cycle and refrigerant gases. They help preserve food by maintaining low temperatures.
What is a refrigerator ?
This nutrient is important for healthy vision and immune function. It supports the development of the retina and is commonly found in carrots and sweet potatoes.
What is Vitamin A?
The place astronauts live while orbiting Earth.
What is the International Space Station?
Formed from cooled magma or lava, this rock type’s name comes from the Latin word for "fire."
What is Igneous?
This metal is symbolized by Fe
What is Iron?
When you push a toy car and it starts moving, you are applying this. Pulls and pushes are examples of it.
What is Force?
These ecosystems are built from calcium carbonate skeletons produced by tiny marine animals called polyps. They support some of the most diverse ecosystems in the ocean. Many reefs form in warm, shallow tropical waters.
This planet is tilted at an angle of about 90 degrees from the vertical, making it look like it rolls around the sun.
What is Uranus?
This supercontinent existed about 300 million years ago before breaking apart into the continents we know today.
What is Pangea?
In these reactions, substances combine with oxygen and release energy in the form of heat and light. Burning wood and gasoline are common examples.
These giant slabs of rock, part of the lithosphere, float on the asthenosphere and move slowly, changing the Earth's surface over millions of years.
What are tectonic plates?