Bath Bombs
is a system that can exchange both matter and energy with its surroundings.
open system
Finding a Part: A store is having a sale, and a video game that normally costs $60 is 35% off. What is the amount of the discount in dollars?
$21
describing a chemical reaction that releases heat energy to the surroundings.
exothermic
Find the Area: A circular garden has a radius of 7 feet. What is the area of the garden? (Use π≈3.14 pi is approximately equal to 3.14)
153.86ft
A type of sugar that is the body's main source of energy.
glucose
the ability of a substance to catch fire easily and burn
flammability
Doris has read 120 pages of a library book. This is 30% of the total pages in the book. How many pages are there in the entire book?
400 pages
what was one problems with the M.R.E.? what was one thing we wanted our homemade version to be better with?
1.price
Find the Circumference: A bicycle wheel has a diameter of 26 inches. What is its circumference? (Leave your answer in terms of πpi).
26 inches
a type of carbohydrate found in plants.
starch
2H2O 2H2+O2
what are the reactants?
2H2+O2
In a class of 30 students, 24 students went on a field trip to the zoo. What percent of the class went to the zoo?
80%
factors that limit or restrict what can be done or achieved.
constraints
7 cm
the building blocks of food.
food molecules
2H2O 2H2+O2
what are the products?
2H2O
A tree was 42 feet tall last year. Now it is 56 feet tall. What is the percent increase in the tree's height?
33.3 or 33 1/3
the act of two or more things communicating or working together.
interaction
Word Problem (Fencing): You want to build a circular fence around a tree. The distance from the center of the tree to the fence line (radius) is 5 meters. How much fencing material (circumference) do you need?
3m
a gland that produces saliva
salivary gland
to mix evenly with a liquid, such as when salt is mixed with water?
dissolve
A sporting goods store sells a basketball for $18. The local sales tax rate is 8%. What is the final selling price of the basketball, including tax
$19.44
describing a chemical reaction that releases heat energy from the surroundings.
endothermic
Comparing Circles: Circle C has a radius of 4 inches. Circle D has a radius that is twice as long as Circle C's radius. How many times larger is the area of Circle D than the area of Circle C?.
4 Circle D's area is 4 times larger than Circle C's area.
Diarrhea
digestive system