Science Crossword Puzzles

Free printable science crossword puzzles. Download pre-made or create your own Crossword using our crossword maker. Simply download, print and start playing or play online.

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Forces and Pressure crossword puzzle
Forces and Pressure

a push or pull acting on an object, a force opposing motion that acts on an object, when an object experiences friction while in a fluid, something …

Speed, Velocity, and Acceleration crossword puzzle
Speed, Velocity, and Acceleration

the rate of change of velocity over time, change in position of an object that is dependent on direction, the speed at any given point - what shows up …

The Origin and Evolution of Life crossword puzzle
The Origin and Evolution of Life

lost the ability to survive independently and became organelles (e.g. mitochondria and chloroplasts), early membranes trapped organic molecules inside …

Energy Transformation crossword puzzle
Energy Transformation

energy that comes from changes in the nucleus of a atom, do not use their energy until they move, keep hot or cold in a object, energy stored in …

5th Grade Science Vocabulary crossword puzzle
5th Grade Science Vocabulary

one complete orbit of a planet around the sun, or the moon around the earth, also called petroleum; a fossil fuel formed from dead algae and plankton …

Properties of Light crossword puzzle
Properties of Light

the small part of the electromagnetic spectrum that the human eye can see including the colors red, orange, yellow, green, blue, indigo and violet, …

Chemical Bonding crossword puzzle
Chemical Bonding

energy required to break a chemical bond and form isolated atoms, covalent bond when electrons are not shared equally, bonding that has an uneven …

Epidermis crossword puzzle
Epidermis

cells in the epidermis involved in immune defense, outermost layer of the epidermis, the primary type of cell found in the epidermis, transparent …

The Digestive Tract crossword puzzle
The Digestive Tract

connects the throat to the stomach, the part where you digest all the food, in between the stomach and large intestine, makes your food into waste, …

Science: Human Body crossword puzzle
Science: Human Body

the part in the back of the eye where the picture is made; it is connected to the optic nerve, bells that carry messages to and from your brain, the …

Organ Functions crossword puzzle
Organ Functions

breaks down and churns food with acid, covering used by trees for protection, responsible for breathing in and out, pumping blood with nutrients and …

Respiratory crossword puzzle
Respiratory

drawing in of a breath, abnormally fast respiratory rate, paired major organs of respiration that contains bronchi and are divided into clearly …

Respiration and Metabolism crossword puzzle
Respiration and Metabolism

the process that releases energy from food for your body to use, type of respiration that needs oxygen and releases a lot of energy, type of …

Human Bones crossword puzzle
Human Bones

bone structure protecting the brain, thigh bone, the longest bone in the body, shinbone, located in the lower leg, smaller bone alongside the tibia, …

Parts of a Plant crossword puzzle
Parts of a Plant

a living thing that grows in soil, has roots, a stem, leaves, and often flowers, the part of a plant that supports the leaves and flowers and carries …

Introduction to Cells crossword puzzle
Introduction to Cells

in a multi-cellular organism, a group of cells working together, the cell's control center, grain-shaped organelles that produce proteins, some …

Chemical Reactions - Thermodynamics crossword puzzle
Chemical Reactions - Thermodynamics

reactions conducted in the presence of oxygen, a substance that increases the rate of a chemical reaction without itself being used up, a factor …

Parts of a Cell crossword puzzle
Parts of a Cell

the "powerhouse" of a cell that converts energy stored in food to energy the cell can use, captures energy from sunlight and changes it to a …

The Nitrogen Cycle crossword puzzle
The Nitrogen Cycle

an element that is needed to make protein, absorbed by the roots of plants, bacteria and fungi that feed on dead plants/animals, used for growth and …

Thermodynamics crossword puzzle
Thermodynamics

1 atm pressure, liquid water always changes to gaseous water at 100 degrees celsius, a measure of the random motions of the components of a substance, …

Photosynthesis / Respiration crossword puzzle
Photosynthesis / Respiration

the process by which plants use energy from the sun, via chloroplasts, to produce sugars, and oxygen, the green pigmentation within chloroplasts, …

Photosynthesis & Cellular Respiration crossword puzzle
Photosynthesis & Cellular Respiration

from what element do plants extract carbon dioxide during photosynthesis? & in cellular respiration what element is released as carbon dioxide …

Abiotic and Biotic Factors crossword puzzle
Abiotic and Biotic Factors

all of the nonliving parts of an ecosystem, any individual living thing, the transfer of energy from one organism to another through a food chain or …

Human Digestive System crossword puzzle
Human Digestive System

the first part of the small intestine, one of its main tasks is to neutralise stomach acids passing into the intestines, as well as making bile, this …

Gravity and Space crossword puzzle
Gravity and Space

the cloud of dust and gas that the solar system came from, the space a object takes up, the closest star to the solar system besides the sun, the …

Parts of the Body Quiz crossword puzzle
Parts of the Body Quiz

a chair has four of these. you have two, people often get these pierced, you have 32 of these and you use them to eat, you use this part of the body …

The Universe crossword puzzle
The Universe

object is furthest from the sun, a cloud of dust and gas, a large collection of stars, gas, and dust that is held together by gravity, the inward …

The Cell Cycle, Mitosis and Meiosis crossword puzzle
The Cell Cycle, Mitosis and Meiosis

binary _ _ _ _ _ _ _ , in meiosis the number of chromosomes are _ _ _ _ _ _ _ by half, sexual reproduction occurs in a _ _ _ _ _ , phase of mitosis …

About Bacteria crossword puzzle
About Bacteria

process that lets organisms get energy from food. (2), type of asexual reproduction that happens in bacteria. (2), process where food is heated to a …

The Alkali Metals crossword puzzle
The Alkali Metals

this happens to the surface of an alkali metal when it reacts with oxygen, this gas is produced when an alkali metal reacts with water, sodium _ into …