Research geomagnetism and migratory animals. What species are especially sensitive to magnetic fields (Figure )? How do researchers measure this sensitivity, and how do they track the animals? Write a short report to share with the class.

$$i i$$

For each underlined word in the following sentences, write the plural above the word. Lunts

Example 1. The $\underline{\text{Lunt}}$ (Lunts), a famous husband and wife acting team, performed in many $\underline{\text{play}}$ (plays) together.

Students must provide their own $\underline{\text{lunch}}$ but will not be allowed to eat while the $\underline{\text{bus}}$ are moving.

The following topics are appropriate for either individual or group research projects. A report should be given to the class on the researched topic. Useful references include history of mathematics books, books whose purpose is to excite the reader about mathematics, encyclopedias, and the Internet. Binary, Octal, Hexadecimal Bases and Computers

As a charged particle enters a magnetic field, what pathways are possible for the particle to follow? (a) circle or helical path only (b) straight line, circle, or helical path (c) circle or parabola only (d) straight line only

In Fig. 3-31, a vector $\vec{a}$ with a magnitude of $17.0 \mathrm{~m}$ is directed at angle $\theta=56.0^{\circ}$ counterclockwise from the $+x$ axis. A second coordinate system is inclined by angle $\theta^{\prime}=18.0^{\circ}$ with respect to the first. What is the components $a_x^{\prime}$ in this primed coordinate system?

If a volcano were to erupt and release large amounts of ash into the air, the ash would _____, causing global temperatures to _____.

A. decrease the albedo: increase

B. increase the greenhouse gases: increase

C. Increase the albedo: decrease

D. decrease the greenhouse gases: decrease

A figure skater spinning in one spot does so around which axis of rotation?

A) Longitudinal

B) Anteroposterior

C) Horizontal

D) None of the above

What is the coefficient of $\ce{Fe^{3+}}$ when the following equation is balanced?

$$\ce{CN^{-} + Fe^{3+} \rightarrow CNO^{-} + Fe^{2+}}$$

a. 1

b. 2

c. 3

d. 4

An investment that earns 10% (compound interest) every year is the same as an investment that earns 5% (compound interest) every 6 months, right?

Show that our proof of Ascoli's theorem goes through if $\mathbb{R}^{n}$ is replaced by any metric space in which all closed bounded subspaces are compact.

Auroras are formed when charged particles collide with atoms and molecules in the upper atmosphere.

An aluminum key, a copper hinge, and a steel bolt are all brought close to a permanent magnet. Which of the following object(s) will be attracted to the magnet? (a) the aluminum key (b) the copper hinge (c) the steel bolt (d) all of the above

A long, straight wire wound into a coil is called a (a) dipping needle (b) magnetic field (c) solenoid (d) galvanometer