Acids & Bases
These substances have a pH lower than 7, and turn a universal indicator red.
What are acids?
This term refers to a group of animals that can reproduce fertile offspring together.
What is species?
These are massive sections of the Earth's crust that move on top of the mantle.
What are tectonic plates?
This is a sound wave that has reflected off a hard surface.
What is an echo?
These are two different substances, the first is chemically bonded, and the second is not chemically bonded.
What are compounds and mixtures?
This is the pH value, AND an example substance that is neutral.
What are 7 and water?
These branching question trees help biologist to identify organisms.
What are dichotomous keys?
This is the process that formed the Himalaya and Rocky mountains, and the specific keyword for this type of mountain.
What are subduction and fold mountains?
This is the distance to the bottom of the sea when sound travels at 1500 meters per second in salt water, and it takes 6 seconds for the sound to travel from a boat, hit the bottom, and return.
What is 4500 meters?
This is a substance made up of only 1 type of atom.
What is an element?
This is how we describe floor cleaner that has a pH of 12 and turns a universal indicator bluish purple.
What is a base?
These are the infertile offspring produced by donkeys and horses.
What is a mule?
These are 3 of the geological changes and events that can happen at plate boundaries.
What are volcanoes, earthquakes, and mountains?
Scientists use sound waves to determine these 4 layers of the Earth.
What are crust, mantle, outer core, and inner core?
This is the most abundant gas in our atmosphere, and the percentage by volume.
What are nitrogen and 78%?
These substances can destroy living tissue and cause burns, and the hazard warning label is 2 test tubes pouring onto a hand and a black bar.
What is corrosive?
These are the 7 characteristics of life.
These occur when the Earth crosses the shadow of the Moon.
What is a solar eclipse?
This is the the correct order, from fastest to slowest, that sound can travel through liquid, gas, vacuum and solid.
What are solid, liquid, gas, and vacuum?
These 3 things are only found in plant cells.
What are cell wall, sap vacuole, and chloroplasts?
These substances give off a large amount of heat when in contact with other substances, and the hazard warning label is a circle with flames around it.
What is oxidising?
These are 4 different specialized cells, AND their functions.
What are palisade cells (photosynthesis), neurones (carry electrical signals), root hair cells (absorb water from soil), ciliated cells (sweep mucus away from the lungs), red blood cells (carry haemoglobin around the body), sperm cell (movement and transfer half the DNA to an egg), etc.
This is the arrangement of the Earth, Moon, and Sun when we experience the highest tidal forces, AND the name of the force that causes Earth to orbit the sun.
What are "in a line" and gravity?
This is the substance that a soundwave travels through, and can change the speed depending on this substance.
What is a medium?
This is why alloys can be stronger than the metals they contain.
What is different sized atoms disrupting the regular pattern and changing how force travels through the alloy?