Scientific method and the periodic table
In an experiment, the conditions that stay the same (do not change) are called...
controls or constants
Anything that has mass and takes up space
The element that all living things are made up of that gets cycled around an ecosystem is
Carbon
The current human population is about ________ billion
7.8- 8 billion
Name the 3 types of rocks
metamorphic, sedimentary, igneous
What is the smallest unit of an element that still has the properties of that element?
Atom
lucky charms and trail mix would be classified as which type of mixture?
heterogeneous
The process by which plants take energy from the sun and turn it into sugar (glucose)
photosynthesis
A naturally occurring process that keeps our planet warm is known as...
the greenhouse effect
Name 3 types of tests that you can perform on an unknown mineral to figure out what it is
possible answers: streak test, luster, density, cleavage and fracture, hardness test, taste, magnetism, reaction to acid
What is the SI unit of measurement for mass?
kilogram
The two general categories for matter are
pure substance and mixtures
The process by which all living things break down sugar to create energy
cellular respiration
Give 3 effects of climate change
possible answers: weird weather (flooding, drought, tornados, hurricanes), melting ice caps, rising sea levels, increased animal extinction, increased disease, increased heat or coldness
What is the difference between weathering and erosion?
Weathering is the creation of smaller pieces of rock through natural or chemical means. Erosion is the moving of these weathered products from one place to another.
Name the 3 subatomic particles in an atom and give the charge for each
proton- positive
neutron- neutral
electron- negative
What is the difference between a chemical and physical change?
Chemical changes are irreversible (can't be undone) and change the properties of the substance. Physical changes can sometimes be undone and do not change the properties of the substance.
Give an example of a producer, a primary consumer and a secondary consumer
producer: any plant
primary consumer: any animal that eats plants
secondary consumer: any animal that eats primary consumers
List 3 renewable sources of energy
Name three ways that volcanoes can form
hot spot, divergent boundary, convergent boundary
The number of valence electrons in an atom is...
The number of electrons in the outermost shell or ring
List the 5 states of matter in order from coldest (molecules moving the least) to hottest (molecules moving the most)
1. Bose einstein condensate
2. Solid
3. Liquid
4. Gas
5. Plasma
Give 4 of the 8 characteristics of life.
Made of cells and DNA, Show organization, drow develop and die, reproduction, respond to stimuli, require food and energy, maintain homeostasis, adpt
Explain the difference between climate and weather
Name the three types of convergent plate boundaries and explain what landforms/ events happen at each boundary
Ocean-Ocean: one plate subducts, forms a trench and an island arc of volcanoes, earthquakes and tsunamis possible
Ocean-Continental: one place subducts, forms a trench and a line of volcanoes on land, earthquakes and tsunamis possible
Continental-Continental: plates crunch into each other, forms a mountain range