Energy
Food, batteries, and gasoline are all examples of this type of stored energy that is waiting to be used
This is defined as a simple push or a pull that can make an object start moving, stop moving, or change its speed or direction
What is a force?
These structures act as an anchor to hold a plant in the ground and also soak up water and nutrients from the soil like a straw
What are roots?
This organ is known as the control center of the body because it sends and receives signals to keep everything working
What is the brain?
Virtually all energy in a food chain begins with this primary source
What is the Sun?
This term describes light bouncing off a smooth or shiny surface, such as a mirror or a metal spoon
What is reflection?
This non-contact force is always pulling objects down toward the center of the Earth
What is gravity?
Known as the "kitchen" of the plant, these structures use sunlight, air, and water to make food (sugar) for the plant to survive
What are leaves?
These two organs work together to filter waste from the blood and store it as urine until it leaves the body
What are the kidneys and bladder?
Plants are called by this name because they make their own food energy using sunlight, water, and air (carbon dioxide)
What are producers?
This occurs when light bends as it passes from one material to another, like when a straw looks broken in a glass of water
What is refraction?
If you apply the same force to two different objects, the one with more mass will move slower or faster than the other object
What is slower?
This part of the plant acts like an elevator, transporting water up from the roots and food down from the leaves
What is the stem?
This long, thin tube is responsible for absorbing nutrients from food into your blood
What is the small intestine?
This is what the arrow represents in a food chain diagram, and it always points toward the organism that is receiving the energy
What is the flow of energy (or direction of energy)?
Scientific evidence shows that heat energy always flows in this specific direction until both objects reach the same temperature
What is from hot to cold?
This force resists motion and occurs when two surfaces rub against each other, such as when brakes slow down a bicycle
What is friction?
This is how plant stems and leaves react when they sense a nearby light source, ensuring they can make the most food possible
What is growing toward the light?
Scientists use this term to describe the large group of animals, like humans and dogs, that possess a backbone
What are vertebrates?
This type of consumer gets its energy by eating both plants and animals
What is an omnivore?
This is produced when you rub two objects together, such as rubbing your hands together on a cold day to stay warm
What is heat (or friction)?
When two or more forces acting on an object are equal in strength and opposite in direction, the object's motion will not change
What are balanced forces (or equal forces)?
Even if a plant is turned on its side, its roots will continue to grow in this specific direction because they are responding to gravity
What is downward?
This is the largest group of invertebrates and is characterized by having jointed legs and a hard exoskeleton
What are arthropods?
These are structural body parts, like a hawk's sharp talons or a cactus's waxy coating, that help an organism survive in its home
What are physical adaptations?
All sound energy is produced by these quick, back-and-forth movements of an object
What are vibrations?
This type of force occurs when the forces acting on an object are unequal, causing the object to speed up, slow down, or change direction
What are unbalanced forces (or unequal forces)?
This is the male part of a flower that is responsible for producing pollen
What is the stamen?
Even though they live in water, whales and dolphins are in this animal group because they breathe air with lungs and give live birth
What are mammals?
Birds flying south for the winter or a bear sleeping through the cold months are examples of this type of survival action
What are behavioral adaptations?
When an object vibrates faster, it produces a sound with this type of higher quality
What is a higher pitch?
To lift an object or keep it in the air, you must apply a force in the opposite direction that is stronger than this force
What is gravity?
This colorful part of a flower is not just for looks; its main job is to attract pollinators like bees and butterflies
What are petals?
This plant part provides support to help a plant stay upright, which is very similar to the function of a skeleton in an animal
What is the stem?
When a habitat changes quickly, living things generally have these three "choices" for what to do next
What are move, adapt, or die?
For electricity to flow and light a bulb, the path must be a complete, unbroken loop called by this name
What is a closed circuit?
While many people believe all metals are magnetic, magnets are actually only attracted to materials containing iron, nickel, cobalt, or steel
What are magnetic materials?
This process occurs when pollen travels down the pistil and joins with an egg in the ovary to create a brand-new seed
What is fertilization?
In many plants, the flower or fruit performs this vital job, which is similar to the role of ovaries and testes in animals
What is reproduction?
This term describes a non-native living thing that enters an ecosystem and causes harm by "smothering" or out-competing native species
What is an invasive species?
Materials like plastic, rubber, and glass are called this because they stop or slow down the flow of electricity
What are insulators?
To determine an object's speed, a scientist must use a stopwatch and a meterstick to measure these two specific factors
What are distance and time?
These non-flowering plants, such as pine or cedar trees, do not produce flowers or fruit, but instead grow their seeds inside woody cones
What are conifers?
This type of metamorphosis has four distinct stages: egg, larva, pupa, and adult
What is complete metamorphosis?
In science, this word simply means to cause a change in the environment, which is not always a bad thing
What is impact?
These two moving natural resources possess mechanical energy that can be harnessed to turn wheels or generate electricity
What are wind and water?
A scientist knows an object is in motion if there is a change in this, which is the location of the object compared to a reference point
What is position?
Plants like ferns and mosses do not make seeds at all; instead, they reproduce using these tiny cells often found in dark spots on the underside of leaves
What are spores?
In incomplete metamorphosis, this stage features a young insect that looks like a smaller version of the adult but usually does not have wings
What is a nymph?
This term refers to the act of protecting or restoring the natural environment, such as when a community creates a wildlife preserve or replants trees
What is conservation?