Science EOY Revision

A ball-and-socket joint allows for a wide range of motion in __________ directions.

All directions

The __________ joint permits movement only in one plane, similar to a door opening and closing.

Hinge

Antagonistic muscles like the biceps and triceps work in __________ to move bones at a hinge joint.

Pairs

When the triceps contract, the biceps __________ to straighten the arm.

Relax

The _______________ protects the brain.

Skull

The __________ supports the spine and protects the spinal cord.

Vertebrae

The __________ connects the arm to the body.

Clavicle (Collarbone)

____________ is active in blood cell production.

Red Marrow

Ligaments connect __________ to __________.

Bone, bone

Tendons connect __________ to __________.

Muscle, bone

Carbohydrates provide the body's main source of __________, especially for the brain and muscles.

Energy

A poor diet can lead to stunted growth, weakened immune system, and __________.

Obesity

Proteins help build, repair, and maintain __________ tissues.

Body

The primary role of fats is to provide __________ energy and support cell growth.

Long-term

Calcium helps with bone formation and is found in __________ products.

Dairy

Oxygen diffuses from the air in the alveoli into the __________.

Blood

Red blood cells return __________ to the lungs.

Carbon dioxide

The diaphragm contracts during __________, creating more space in the chest cavity.

Inhalation

The chemical equation for aerobic respiration includes glucose and __________.

Oxygen

Elements are pure substances made of only __________ type of atom.

One

A molecule is formed when two or more atoms are __________ together.

Chemically bonded

Chemistry often observes the __________ of acids and metals during reactions.

Fizzes

A __________ force results in no change in motion for an object.

Balanced

Speed is defined as the rate at which an object covers __________.

Distance

The __________ of an electromagnet can be increased by increasing the current.

Strength

The angle of incidence equals the angle of __________ for reflected light.

Reflection

Light bends toward the normal when it passes from air to __________.

Glass

The __________ of salts usually increases with temperature.

Solubility

___________ are particles that carry oxygen and return carbon dioxide to the lungs.

Red Blood Cells

The process of diffusion continues until the concentration is __________ throughout.

Uniform

The __________ part of blood helps transport nutrients and waste products.

Plasma

White light is a mixture of all __________ of the rainbow.

Colors

In a distance/time graph, a steep slope indicates __________ speed.

Faster